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4487061 = 31495687
BaseRepresentation
bin10001000111011110010101
322102222002110
4101013132111
52122041221
6240101233
753065545
oct21073625
98388073
104487061
112595217
121604819
13c11487
1484b325
155d9776
hex447795

4487061 has 4 divisors (see below), whose sum is σ = 5982752. Its totient is φ = 2991372.

The previous prime is 4487053. The next prime is 4487089. The reversal of 4487061 is 1607844.

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 not a de Polignac number, because 4487061 - 23 = 4487053 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4487011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 747841 + ... + 747846.

It is an arithmetic number, because the mean of its divisors is an integer number (1495688).

Almost surely, 24487061 is an apocalyptic number.

It is an amenable number.

4487061 is a deficient number, since it is larger than the sum of its proper divisors (1495691).

4487061 is a wasteful number, since it uses less digits than its factorization.

4487061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495690.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 4487061 is about 2118.2683965919. The cubic root of 4487061 is about 164.9379748505.

The spelling of 4487061 in words is "four million, four hundred eighty-seven thousand, sixty-one".

Divisors: 1 3 1495687 4487061