641535004 has 12 divisors (see below), whose sum is σ = 1224748728. Its totient is φ = 291606800.

The previous prime is 641534953. The next prime is 641535029. The reversal of 641535004 is 400535146.

It is a super-2 number, since 2×641535004² = 823134322714560032, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 7290127 + ... + 7290214.

It is an arithmetic number, because the mean of its divisors is an integer number (102062394).

Almost surely, 2^641535004 is an apocalyptic number.

It is an amenable number.

641535004 is a deficient number, since it is larger than the sum of its proper divisors (583213724).

641535004 is a wasteful number, since it uses less digits than its factorization.

641535004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14580356 (or 14580354 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 641535004 is about 25328.5412923840. The cubic root of 641535004 is about 862.4622979809.

The spelling of 641535004 in words is "six hundred forty-one million, five hundred thirty-five thousand, four".