870581612 has 24 divisors (see below), whose sum is σ = 1566922896. Its totient is φ = 422993088.

The previous prime is 870581609. The next prime is 870581651. The reversal of 870581612 is 216185078.

It is an alternating number because its digits alternate between even and odd.

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, 21038 + ... + 46730.

It is an arithmetic number, because the mean of its divisors is an integer number (65288454).

Almost surely, 2^870581612 is an apocalyptic number.

It is an amenable number.

870581612 is a deficient number, since it is larger than the sum of its proper divisors (696341284).

870581612 is a wasteful number, since it uses less digits than its factorization.

870581612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25937 (or 25935 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 38.

The square root of 870581612 is about 29505.6200070427. The cubic root of 870581612 is about 954.8529554401.

The spelling of 870581612 in words is "eight hundred seventy million, five hundred eighty-one thousand, six hundred twelve".