870857346 has 64 divisors (see below), whose sum is σ = 1813363200. Its totient is φ = 278678400.

The previous prime is 870857333. The next prime is 870857399. The reversal of 870857346 is 643758078.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 870857295 and 870857304.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4127181 + ... + 4127391.

It is an arithmetic number, because the mean of its divisors is an integer number (28333800).

Almost surely, 2^870857346 is an apocalyptic number.

870857346 is an abundant number, since it is smaller than the sum of its proper divisors (942505854).

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

870857346 is a wasteful number, since it uses less digits than its factorization.

870857346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The square root of 870857346 is about 29510.2922045852. The cubic root of 870857346 is about 954.9537530486.

The spelling of 870857346 in words is "eight hundred seventy million, eight hundred fifty-seven thousand, three hundred forty-six".