670608872 has 16 divisors (see below), whose sum is σ = 1259698560. Its totient is φ = 334689264.

The previous prime is 670608853. The next prime is 670608899. The reversal of 670608872 is 278806076.

It is a happy number.

It is a super-2 number, since 2×670608872² = 899432518410224768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72248 + ... + 80999.

It is an arithmetic number, because the mean of its divisors is an integer number (78731160).

Almost surely, 2^670608872 is an apocalyptic number.

It is an amenable number.

670608872 is a deficient number, since it is larger than the sum of its proper divisors (589089688).

670608872 is a wasteful number, since it uses less digits than its factorization.

670608872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153800 (or 153796 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 670608872 is about 25896.1169289915. The cubic root of 670608872 is about 875.2989985515.

The spelling of 670608872 in words is "six hundred seventy million, six hundred eight thousand, eight hundred seventy-two".