856402967 has 8 divisors (see below), whose sum is σ = 979780896. Its totient is φ = 733283712.

The previous prime is 856402951. The next prime is 856403003. The reversal of 856402967 is 769204658.

856402967 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 856402967 - 2⁴ = 856402951 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 (856402367) 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, 57518 + ... + 70859.

It is an arithmetic number, because the mean of its divisors is an integer number (122472612).

Almost surely, 2^856402967 is an apocalyptic number.

856402967 is a deficient number, since it is larger than the sum of its proper divisors (123377929).

856402967 is a wasteful number, since it uses less digits than its factorization.

856402967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129337.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 856402967 is about 29264.3634306301. The cubic root of 856402967 is about 949.6408492805.

The spelling of 856402967 in words is "eight hundred fifty-six million, four hundred two thousand, nine hundred sixty-seven".