667376744 has 8 divisors (see below), whose sum is σ = 1251331410. Its totient is φ = 333688368.

The previous prime is 667376719. The next prime is 667376771. The reversal of 667376744 is 447673766.

It can be written as a sum of positive squares in only one way, i.e., 341140900 + 326235844 = 18470^2 + 18062^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 667376692 and 667376701.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41711039 + ... + 41711054.

Almost surely, 2^667376744 is an apocalyptic number.

It is an amenable number.

667376744 is a deficient number, since it is larger than the sum of its proper divisors (583954666).

667376744 is a wasteful number, since it uses less digits than its factorization.

667376744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83422099 (or 83422095 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 50.

The square root of 667376744 is about 25833.6359036044. The cubic root of 667376744 is about 873.8905095279.

The spelling of 667376744 in words is "six hundred sixty-seven million, three hundred seventy-six thousand, seven hundred forty-four".