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84324901 = 263320627
BaseRepresentation
bin1010000011010…
…11001000100101
312212200011000111
411001223020211
5133041344101
612211213021
72042515123
oct501531045
9185604014
1084324901
1143665601
12242a7171
1314615abb
14b2b0913
15760a251
hex506b225

84324901 has 4 divisors (see below), whose sum is σ = 84645792. Its totient is φ = 84004012.

The previous prime is 84324841. The next prime is 84324917. The reversal of 84324901 is 10942348.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84324901 - 29 = 84324389 is a prime.

It is a super-2 number, since 2×843249012 = 14221377857319602, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84324941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160051 + ... + 160576.

It is an arithmetic number, because the mean of its divisors is an integer number (21161448).

Almost surely, 284324901 is an apocalyptic number.

It is an amenable number.

84324901 is a deficient number, since it is larger than the sum of its proper divisors (320891).

84324901 is a wasteful number, since it uses less digits than its factorization.

84324901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320890.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 84324901 is about 9182.8590863630. The cubic root of 84324901 is about 438.5158344398.

The spelling of 84324901 in words is "eighty-four million, three hundred twenty-four thousand, nine hundred one".

Divisors: 1 263 320627 84324901