870772851 has 24 divisors (see below), whose sum is σ = 1364899536. Its totient is φ = 531760320.

The previous prime is 870772843. The next prime is 870772891. The reversal of 870772851 is 158277078.

It is not a de Polignac number, because 870772851 - 2³ = 870772843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 870772797 and 870772806.

It is not an unprimeable number, because it can be changed into a prime (870772811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13080 + ... + 43733.

It is an arithmetic number, because the mean of its divisors is an integer number (56870814).

Almost surely, 2^870772851 is an apocalyptic number.

870772851 is a deficient number, since it is larger than the sum of its proper divisors (494126685).

870772851 is a wasteful number, since it uses less digits than its factorization.

870772851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56963 (or 56960 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 45.

The square root of 870772851 is about 29508.8605506888. The cubic root of 870772851 is about 954.9228672296.

The spelling of 870772851 in words is "eight hundred seventy million, seven hundred seventy-two thousand, eight hundred fifty-one".