667377404 has 24 divisors (see below), whose sum is σ = 1187923968. Its totient is φ = 328019120.

The previous prime is 667377401. The next prime is 667377421. The reversal of 667377404 is 404773766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667377401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50117 + ... + 62019.

It is an arithmetic number, because the mean of its divisors is an integer number (49496832).

Almost surely, 2^667377404 is an apocalyptic number.

It is an amenable number.

667377404 is a deficient number, since it is larger than the sum of its proper divisors (520546564).

667377404 is a wasteful number, since it uses less digits than its factorization.

667377404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12145 (or 12143 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 44.

The square root of 667377404 is about 25833.6486776452. The cubic root of 667377404 is about 873.8907976048.

The spelling of 667377404 in words is "six hundred sixty-seven million, three hundred seventy-seven thousand, four hundred four".