856926863 has 8 divisors (see below), whose sum is σ = 929040000. Its totient is φ = 785698848.

The previous prime is 856926859. The next prime is 856926869. The reversal of 856926863 is 368629658.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 856926863 - 2² = 856926859 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 219263 + ... + 223136.

It is an arithmetic number, because the mean of its divisors is an integer number (116130000).

Almost surely, 2^856926863 is an apocalyptic number.

856926863 is a deficient number, since it is larger than the sum of its proper divisors (72113137).

856926863 is a wasteful number, since it uses less digits than its factorization.

856926863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442561.

The product of its digits is 3732480, while the sum is 53.

The square root of 856926863 is about 29273.3131537925. The cubic root of 856926863 is about 949.8344542564.

The spelling of 856926863 in words is "eight hundred fifty-six million, nine hundred twenty-six thousand, eight hundred sixty-three".