853439136 has 72 divisors (see below), whose sum is σ = 2462487552. Its totient is φ = 258614400.

The previous prime is 853439123. The next prime is 853439141. The reversal of 853439136 is 631934358.

853439136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25120 + ... + 48351.

It is an arithmetic number, because the mean of its divisors is an integer number (34201216).

Almost surely, 2^853439136 is an apocalyptic number.

It is an amenable number.

853439136 is an abundant number, since it is smaller than the sum of its proper divisors (1609048416).

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

853439136 is a wasteful number, since it uses less digits than its factorization.

853439136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73506 (or 73487 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 853439136 is about 29213.6806308277. The cubic root of 853439136 is about 948.5440804936.

The spelling of 853439136 in words is "eight hundred fifty-three million, four hundred thirty-nine thousand, one hundred thirty-six".