670921315 has 8 divisors (see below), whose sum is σ = 811445760. Its totient is φ = 532510272.

The previous prime is 670921301. The next prime is 670921343. The reversal of 670921315 is 513129076.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 670921315 - 2⁵ = 670921283 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 527650 + ... + 528919.

It is an arithmetic number, because the mean of its divisors is an integer number (101430720).

Almost surely, 2^670921315 is an apocalyptic number.

670921315 is a deficient number, since it is larger than the sum of its proper divisors (140524445).

670921315 is a wasteful number, since it uses less digits than its factorization.

670921315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056701.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 670921315 is about 25902.1488490820. The cubic root of 670921315 is about 875.4349141325.

The spelling of 670921315 in words is "six hundred seventy million, nine hundred twenty-one thousand, three hundred fifteen".