670609864 has 32 divisors (see below), whose sum is σ = 1324908000. Its totient is φ = 317336832.

The previous prime is 670609859. The next prime is 670609909. The reversal of 670609864 is 468906076.

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, 224847 + ... + 227809.

It is an arithmetic number, because the mean of its divisors is an integer number (41403375).

Almost surely, 2^670609864 is an apocalyptic number.

It is an amenable number.

670609864 is a deficient number, since it is larger than the sum of its proper divisors (654298136).

670609864 is a wasteful number, since it uses less digits than its factorization.

670609864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4477 (or 4473 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 670609864 is about 25896.1360824352. The cubic root of 670609864 is about 875.2994301474.

The spelling of 670609864 in words is "six hundred seventy million, six hundred nine thousand, eight hundred sixty-four".