670813870 has 16 divisors (see below), whose sum is σ = 1207760400. Its totient is φ = 268259904.

The previous prime is 670813859. The next prime is 670813903. The reversal of 670813870 is 78318076.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72634 + ... + 81346.

It is an arithmetic number, because the mean of its divisors is an integer number (75485025).

Almost surely, 2^670813870 is an apocalyptic number.

670813870 is a deficient number, since it is larger than the sum of its proper divisors (536946530).

670813870 is a wasteful number, since it uses less digits than its factorization.

670813870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16419.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 670813870 is about 25900.0747103170. The cubic root of 670813870 is about 875.3881793298.

The spelling of 670813870 in words is "six hundred seventy million, eight hundred thirteen thousand, eight hundred seventy".