84829321 has 4 divisors (see below), whose sum is σ = 87754500. Its totient is φ = 81904144.

The previous prime is 84829289. The next prime is 84829333. The reversal of 84829321 is 12392848.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29550096 + 55279225 = 5436^2 + 7435^2 .

It is a cyclic number.

It is not a de Polignac number, because 84829321 - 2⁵ = 84829289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84829391) 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, 1462546 + ... + 1462603.

It is an arithmetic number, because the mean of its divisors is an integer number (21938625).

Almost surely, 2^84829321 is an apocalyptic number.

It is an amenable number.

84829321 is a deficient number, since it is larger than the sum of its proper divisors (2925179).

84829321 is a wasteful number, since it uses less digits than its factorization.

84829321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925178.

The product of its digits is 27648, while the sum is 37.

The square root of 84829321 is about 9210.2834375496. The cubic root of 84829321 is about 439.3884772752.

The spelling of 84829321 in words is "eighty-four million, eight hundred twenty-nine thousand, three hundred twenty-one".