670784676 has 12 divisors (see below), whose sum is σ = 1565164272. Its totient is φ = 223594888.

The previous prime is 670784651. The next prime is 670784687. The reversal of 670784676 is 676487076.

It is a tau number, because it is divible by the number of its divisors (12).

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, 27949350 + ... + 27949373.

It is an arithmetic number, because the mean of its divisors is an integer number (130430356).

Almost surely, 2^670784676 is an apocalyptic number.

It is an amenable number.

670784676 is an abundant number, since it is smaller than the sum of its proper divisors (894379596).

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

670784676 is a wasteful number, since it uses less digits than its factorization.

670784676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55898730 (or 55898728 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 51.

The square root of 670784676 is about 25899.5111150771. The cubic root of 670784676 is about 875.3754801026.

The spelling of 670784676 in words is "six hundred seventy million, seven hundred eighty-four thousand, six hundred seventy-six".