670743312 has 80 divisors (see below), whose sum is σ = 1769654592. Its totient is φ = 218856960.

The previous prime is 670743287. The next prime is 670743331. The reversal of 670743312 is 213347076.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 810643 + ... + 811469.

Almost surely, 2^670743312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670743312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (884827296).

670743312 is an abundant number, since it is smaller than the sum of its proper divisors (1098911280).

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

670743312 is a wasteful number, since it uses less digits than its factorization.

670743312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176 (or 1170 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 670743312 is about 25898.7125548742. The cubic root of 670743312 is about 875.3574863623.

The spelling of 670743312 in words is "six hundred seventy million, seven hundred forty-three thousand, three hundred twelve".