670345752 has 16 divisors (see below), whose sum is σ = 1675864440. Its totient is φ = 223448576.

The previous prime is 670345747. The next prime is 670345769. The reversal of 670345752 is 257543076.

670345752 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 670345752.

It is a congruent number.

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, 13965513 + ... + 13965560.

Almost surely, 2^670345752 is an apocalyptic number.

It is an amenable number.

670345752 is an abundant number, since it is smaller than the sum of its proper divisors (1005518688).

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

670345752 is a wasteful number, since it uses less digits than its factorization.

670345752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27931082 (or 27931078 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 39.

The square root of 670345752 is about 25891.0361322215. The cubic root of 670345752 is about 875.1845061800.

The spelling of 670345752 in words is "six hundred seventy million, three hundred forty-five thousand, seven hundred fifty-two".