870572666 has 16 divisors (see below), whose sum is σ = 1375164000. Its totient is φ = 412203888.

The previous prime is 870572629. The next prime is 870572713. The reversal of 870572666 is 666275078.

It is a self number, because there is not a number n which added to its sum of digits gives 870572666.

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, 168185 + ... + 173283.

It is an arithmetic number, because the mean of its divisors is an integer number (85947750).

Almost surely, 2^870572666 is an apocalyptic number.

870572666 is a deficient number, since it is larger than the sum of its proper divisors (504591334).

870572666 is a wasteful number, since it uses less digits than its factorization.

870572666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9613.

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 870572666 is about 29505.4684084154. The cubic root of 870572666 is about 954.8496847746.

The spelling of 870572666 in words is "eight hundred seventy million, five hundred seventy-two thousand, six hundred sixty-six".