856313073 has 96 divisors (see below), whose sum is σ = 1666224000. Its totient is φ = 429287040.

The previous prime is 856313053. The next prime is 856313077. The reversal of 856313073 is 370313658.

It is not a de Polignac number, because 856313073 - 2⁸ = 856312817 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856313077) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 421023 + ... + 423051.

It is an arithmetic number, because the mean of its divisors is an integer number (17356500).

Almost surely, 2^856313073 is an apocalyptic number.

It is an amenable number.

856313073 is a deficient number, since it is larger than the sum of its proper divisors (809910927).

856313073 is a wasteful number, since it uses less digits than its factorization.

856313073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092 (or 2079 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 856313073 is about 29262.8274949636. The cubic root of 856313073 is about 949.6076211528.

The spelling of 856313073 in words is "eight hundred fifty-six million, three hundred thirteen thousand, seventy-three".