641700874 has 32 divisors (see below), whose sum is σ = 1031978880. Its totient is φ = 298584000.

The previous prime is 641700847. The next prime is 641700877. The reversal of 641700874 is 478007146.

It is not an unprimeable number, because it can be changed into a prime (641700877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272944 + ... + 275284.

It is an arithmetic number, because the mean of its divisors is an integer number (32249340).

Almost surely, 2^641700874 is an apocalyptic number.

641700874 is a deficient number, since it is larger than the sum of its proper divisors (390278006).

641700874 is a wasteful number, since it uses less digits than its factorization.

641700874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 641700874 is about 25331.8154501410. The cubic root of 641700874 is about 862.5366219555.

The spelling of 641700874 in words is "six hundred forty-one million, seven hundred thousand, eight hundred seventy-four".