772852638 has 16 divisors (see below), whose sum is σ = 1568776320. Its totient is φ = 253772376.

The previous prime is 772852637. The next prime is 772852651. The reversal of 772852638 is 836258277.

772852638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772852637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 960858 + ... + 961661.

It is an arithmetic number, because the mean of its divisors is an integer number (98048520).

Almost surely, 2^772852638 is an apocalyptic number.

772852638 is an abundant number, since it is smaller than the sum of its proper divisors (795923682).

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

772852638 is a wasteful number, since it uses less digits than its factorization.

772852638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922591.

The product of its digits is 1128960, while the sum is 48.

The square root of 772852638 is about 27800.2273012290. The cubic root of 772852638 is about 917.6961249961.

The spelling of 772852638 in words is "seven hundred seventy-two million, eight hundred fifty-two thousand, six hundred thirty-eight".