670390704 has 60 divisors (see below), whose sum is σ = 1916100576. Its totient is φ = 218706816.

The previous prime is 670390703. The next prime is 670390723. The reversal of 670390704 is 407093076.

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

It is not an unprimeable number, because it can be changed into a prime (670390703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42759 + ... + 56294.

Almost surely, 2^670390704 is an apocalyptic number.

It is an amenable number.

670390704 is an abundant number, since it is smaller than the sum of its proper divisors (1245709872).

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

670390704 is a wasteful number, since it uses less digits than its factorization.

670390704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99114 (or 99105 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 670390704 is about 25891.9042173418. The cubic root of 670390704 is about 875.2040684305.

The spelling of 670390704 in words is "six hundred seventy million, three hundred ninety thousand, seven hundred four".