670657330 has 32 divisors (see below), whose sum is σ = 1381089024. Its totient is φ = 229697856.

The previous prime is 670657319. The next prime is 670657343. The reversal of 670657330 is 33756076.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 670657330.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69904 + ... + 78916.

It is an arithmetic number, because the mean of its divisors is an integer number (43159032).

Almost surely, 2^670657330 is an apocalyptic number.

670657330 is an abundant number, since it is smaller than the sum of its proper divisors (710431694).

670657330 is a wasteful number, since it uses less digits than its factorization.

670657330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10090.

The product of its (nonzero) digits is 79380, while the sum is 37.

The square root of 670657330 is about 25897.0525349894. The cubic root of 670657330 is about 875.3200809931.

The spelling of 670657330 in words is "six hundred seventy million, six hundred fifty-seven thousand, three hundred thirty".