667900744 has 16 divisors (see below), whose sum is σ = 1431216000. Its totient is φ = 286243152.

The previous prime is 667900729. The next prime is 667900781. The reversal of 667900744 is 447009766.

It is a self number, because there is not a number n which added to its sum of digits gives 667900744.

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 3 ways as a sum of consecutive naturals, for example, 5963344 + ... + 5963455.

It is an arithmetic number, because the mean of its divisors is an integer number (89451000).

Almost surely, 2^667900744 is an apocalyptic number.

It is an amenable number.

667900744 is an abundant number, since it is smaller than the sum of its proper divisors (763315256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667900744 is a wasteful number, since it uses less digits than its factorization.

667900744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11926812 (or 11926808 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 667900744 is about 25843.7757303379. The cubic root of 667900744 is about 874.1191653990.

The spelling of 667900744 in words is "six hundred sixty-seven million, nine hundred thousand, seven hundred forty-four".