641523304 has 16 divisors (see below), whose sum is σ = 1228449600. Its totient is φ = 313936752.

The previous prime is 641523287. The next prime is 641523329. The reversal of 641523304 is 403325146.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852714 + ... + 853465.

It is an arithmetic number, because the mean of its divisors is an integer number (76778100).

Almost surely, 2^641523304 is an apocalyptic number.

It is an amenable number.

641523304 is a deficient number, since it is larger than the sum of its proper divisors (586926296).

641523304 is a wasteful number, since it uses less digits than its factorization.

641523304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706232 (or 1706228 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 641523304 is about 25328.3103265891. The cubic root of 641523304 is about 862.4570548946.

The spelling of 641523304 in words is "six hundred forty-one million, five hundred twenty-three thousand, three hundred four".