670624905 has 32 divisors (see below), whose sum is σ = 1122605568. Its totient is φ = 341504000.

The previous prime is 670624883. The next prime is 670624919. The reversal of 670624905 is 509426076.

It is not a de Polignac number, because 670624905 - 2⁵ = 670624873 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 17305 + ... + 40505.

It is an arithmetic number, because the mean of its divisors is an integer number (35081424).

Almost surely, 2^670624905 is an apocalyptic number.

It is an amenable number.

670624905 is a deficient number, since it is larger than the sum of its proper divisors (451980663).

670624905 is a wasteful number, since it uses less digits than its factorization.

670624905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23297.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 670624905 is about 25896.4264909273. The cubic root of 670624905 is about 875.3059740815.

The spelling of 670624905 in words is "six hundred seventy million, six hundred twenty-four thousand, nine hundred five".