641757096 has 24 divisors (see below), whose sum is σ = 1738092330. Its totient is φ = 213919008.

The previous prime is 641757049. The next prime is 641757107. The reversal of 641757096 is 690757146.

It is a happy number.

641757096 is a `hidden beast` number, since 64 + 17 + 570 + 9 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 422302500 + 219454596 = 20550^2 + 14814^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4456575 + ... + 4456718.

Almost surely, 2^641757096 is an apocalyptic number.

It is an amenable number.

641757096 is an abundant number, since it is smaller than the sum of its proper divisors (1096335234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

641757096 is a wasteful number, since it uses less digits than its factorization.

641757096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8913305 (or 8913298 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 641757096 is about 25332.9251370622. The cubic root of 641757096 is about 862.5618113232.

Subtracting 641757096 from its reverse (690757146), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 641757096 in words is "six hundred forty-one million, seven hundred fifty-seven thousand, ninety-six".