667403404 has 12 divisors (see below), whose sum is σ = 1169910000. Its totient is φ = 333143408.

The previous prime is 667403393. The next prime is 667403413. The reversal of 667403404 is 404304766.

667403404 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 667403404.

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, 136879 + ... + 141670.

It is an arithmetic number, because the mean of its divisors is an integer number (97492500).

Almost surely, 2^667403404 is an apocalyptic number.

It is an amenable number.

667403404 is a deficient number, since it is larger than the sum of its proper divisors (502506596).

667403404 is a wasteful number, since it uses less digits than its factorization.

667403404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279152 (or 279150 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 34.

The square root of 667403404 is about 25834.1518924078. The cubic root of 667403404 is about 873.9021459391.

The spelling of 667403404 in words is "six hundred sixty-seven million, four hundred three thousand, four hundred four".