856546928 has 40 divisors (see below), whose sum is σ = 1711699968. Its totient is φ = 414977472.

The previous prime is 856546919. The next prime is 856546937. The reversal of 856546928 is 829645658.

It is an interprime number because it is at equal distance from previous prime (856546919) and next prime (856546937).

It is a self number, because there is not a number n which added to its sum of digits gives 856546928.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82475 + ... + 92277.

Almost surely, 2^856546928 is an apocalyptic number.

It is an amenable number.

856546928 is a deficient number, since it is larger than the sum of its proper divisors (855153040).

856546928 is a wasteful number, since it uses less digits than its factorization.

856546928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9981 (or 9975 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 53.

The square root of 856546928 is about 29266.8229912302. The cubic root of 856546928 is about 949.6940577162.

The spelling of 856546928 in words is "eight hundred fifty-six million, five hundred forty-six thousand, nine hundred twenty-eight".