870407844 has 24 divisors (see below), whose sum is σ = 2031727488. Its totient is φ = 290025120.

The previous prime is 870407761. The next prime is 870407887. The reversal of 870407844 is 448704078.

It is a junction number, because it is equal to n+sod(n) for n = 870407796 and 870407805.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22734 + ... + 47514.

It is an arithmetic number, because the mean of its divisors is an integer number (84655312).

Almost surely, 2^870407844 is an apocalyptic number.

It is an amenable number.

870407844 is an abundant number, since it is smaller than the sum of its proper divisors (1161319644).

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

870407844 is a wasteful number, since it uses less digits than its factorization.

870407844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27715 (or 27713 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 42.

The square root of 870407844 is about 29502.6752007339. The cubic root of 870407844 is about 954.7894216957.

The spelling of 870407844 in words is "eight hundred seventy million, four hundred seven thousand, eight hundred forty-four".