670731708 has 48 divisors (see below), whose sum is σ = 1623361824. Its totient is φ = 215366400.

The previous prime is 670731701. The next prime is 670731709. The reversal of 670731708 is 807137076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670731701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37366 + ... + 52322.

It is an arithmetic number, because the mean of its divisors is an integer number (33820038).

Almost surely, 2^670731708 is an apocalyptic number.

It is an amenable number.

670731708 is an abundant number, since it is smaller than the sum of its proper divisors (952630116).

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

670731708 is a wasteful number, since it uses less digits than its factorization.

670731708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15102 (or 15100 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 39.

The square root of 670731708 is about 25898.4885273253. The cubic root of 670731708 is about 875.3524383772.

The spelling of 670731708 in words is "six hundred seventy million, seven hundred thirty-one thousand, seven hundred eight".