667713952 has 24 divisors (see below), whose sum is σ = 1319465700. Its totient is φ = 332611584.

The previous prime is 667713923. The next prime is 667713971. The reversal of 667713952 is 259317766.

It can be written as a sum of positive squares in 2 ways, for example, as 615238416 + 52475536 = 24804^2 + 7244^2 .

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, 30177 + ... + 47392.

Almost surely, 2^667713952 is an apocalyptic number.

It is an amenable number.

667713952 is a deficient number, since it is larger than the sum of its proper divisors (651751748).

667713952 is a wasteful number, since it uses less digits than its factorization.

667713952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77848 (or 77840 counting only the distinct ones).

The product of its digits is 476280, while the sum is 46.

The square root of 667713952 is about 25840.1616094017. The cubic root of 667713952 is about 874.0376694120.

The spelling of 667713952 in words is "six hundred sixty-seven million, seven hundred thirteen thousand, nine hundred fifty-two".