39606664 has 8 divisors (see below), whose sum is σ = 74262510. Its totient is φ = 19803328.

The previous prime is 39606649. The next prime is 39606683. The reversal of 39606664 is 46660693.

It can be written as a sum of positive squares in only one way, i.e., 39312900 + 293764 = 6270^2 + 542^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2475409 + ... + 2475424.

Almost surely, 2^39606664 is an apocalyptic number.

It is an amenable number.

39606664 is a deficient number, since it is larger than the sum of its proper divisors (34655846).

39606664 is a wasteful number, since it uses less digits than its factorization.

39606664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4950839 (or 4950835 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 40.

The square root of 39606664 is about 6293.3825563047. The cubic root of 39606664 is about 340.8705029110.

The spelling of 39606664 in words is "thirty-nine million, six hundred six thousand, six hundred sixty-four".