670635072 has 56 divisors (see below), whose sum is σ = 1971548000. Its totient is φ = 223544448.

The previous prime is 670635067. The next prime is 670635089. The reversal of 670635072 is 270536076.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192322 + ... + 195777.

Almost surely, 2^670635072 is an apocalyptic number.

It is an amenable number.

670635072 is an abundant number, since it is smaller than the sum of its proper divisors (1300912928).

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

670635072 is a wasteful number, since it uses less digits than its factorization.

670635072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388120 (or 388104 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 670635072 is about 25896.6227913989. The cubic root of 670635072 is about 875.3103974140.

The spelling of 670635072 in words is "six hundred seventy million, six hundred thirty-five thousand, seventy-two".