856926868 has 12 divisors (see below), whose sum is σ = 1713853792. Its totient is φ = 367254360.

The previous prime is 856926859. The next prime is 856926869. The reversal of 856926868 is 868629658.

856926868 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856926869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15302238 + ... + 15302293.

Almost surely, 2^856926868 is an apocalyptic number.

It is an amenable number.

856926868 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

856926868 is a wasteful number, since it uses less digits than its factorization.

856926868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30604542 (or 30604540 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 58.

The square root of 856926868 is about 29273.3132391945. The cubic root of 856926868 is about 949.8344561038.

The spelling of 856926868 in words is "eight hundred fifty-six million, nine hundred twenty-six thousand, eight hundred sixty-eight".