670712644 has 12 divisors (see below), whose sum is σ = 1341425344. Its totient is φ = 287448264.

The previous prime is 670712641. The next prime is 670712659. The reversal of 670712644 is 446217076.

670712644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

670712644 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (670712641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11976984 + ... + 11977039.

Almost surely, 2^670712644 is an apocalyptic number.

It is an amenable number.

670712644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

670712644 is a wasteful number, since it uses less digits than its factorization.

670712644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23954034 (or 23954032 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 670712644 is about 25898.1204723432. The cubic root of 670712644 is about 875.3441450080.

The spelling of 670712644 in words is "six hundred seventy million, seven hundred twelve thousand, six hundred forty-four".