956536638 has 32 divisors (see below), whose sum is σ = 1996596000. Its totient is φ = 305120256.

The previous prime is 956536631. The next prime is 956536681. The reversal of 956536638 is 836635659.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (956536631) 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, 4663 + ... + 43986.

It is an arithmetic number, because the mean of its divisors is an integer number (62393625).

Almost surely, 2^956536638 is an apocalyptic number.

956536638 is an abundant number, since it is smaller than the sum of its proper divisors (1040059362).

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

956536638 is a wasteful number, since it uses less digits than its factorization.

956536638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48796.

The product of its digits is 3499200, while the sum is 51.

The square root of 956536638 is about 30927.9265066380. The cubic root of 956536638 is about 985.2970967718.

The spelling of 956536638 in words is "nine hundred fifty-six million, five hundred thirty-six thousand, six hundred thirty-eight".