669379804 has 12 divisors (see below), whose sum is σ = 1233068200. Its totient is φ = 317074608.

The previous prime is 669379783. The next prime is 669379813. The reversal of 669379804 is 408973966.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 4403739 + ... + 4403890.

Almost surely, 2^669379804 is an apocalyptic number.

It is an amenable number.

669379804 is a deficient number, since it is larger than the sum of its proper divisors (563688396).

669379804 is a wasteful number, since it uses less digits than its factorization.

669379804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8807652 (or 8807650 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 52.

The square root of 669379804 is about 25872.3753064924. The cubic root of 669379804 is about 874.7639326161.

The spelling of 669379804 in words is "six hundred sixty-nine million, three hundred seventy-nine thousand, eight hundred four".