870709512 has 32 divisors (see below), whose sum is σ = 2191392000. Its totient is φ = 288287424.

The previous prime is 870709507. The next prime is 870709513. The reversal of 870709512 is 215907078.

It is not an unprimeable number, because it can be changed into a prime (870709513) 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, 118168 + ... + 125319.

It is an arithmetic number, because the mean of its divisors is an integer number (68481000).

Almost surely, 2^870709512 is an apocalyptic number.

It is an amenable number.

870709512 is an abundant number, since it is smaller than the sum of its proper divisors (1320682488).

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

870709512 is a wasteful number, since it uses less digits than its factorization.

870709512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243645 (or 243641 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 870709512 is about 29507.7873111489. The cubic root of 870709512 is about 954.8997133436.

The spelling of 870709512 in words is "eight hundred seventy million, seven hundred nine thousand, five hundred twelve".