856996372 has 12 divisors (see below), whose sum is σ = 1507597056. Its totient is φ = 426254360.

The previous prime is 856996363. The next prime is 856996409. The reversal of 856996372 is 273699658.

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, 560098 + ... + 561625.

It is an arithmetic number, because the mean of its divisors is an integer number (125633088).

Almost surely, 2^856996372 is an apocalyptic number.

It is an amenable number.

856996372 is a deficient number, since it is larger than the sum of its proper divisors (650600684).

856996372 is a wasteful number, since it uses less digits than its factorization.

856996372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121918 (or 1121916 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 55.

The square root of 856996372 is about 29274.5003714837. The cubic root of 856996372 is about 949.8601352726.

The spelling of 856996372 in words is "eight hundred fifty-six million, nine hundred ninety-six thousand, three hundred seventy-two".