39666612 has 24 divisors (see below), whose sum is σ = 93423456. Its totient is φ = 13098208.

The previous prime is 39666587. The next prime is 39666629. The reversal of 39666612 is 21666693.

It is a happy number.

39666612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14163 + ... + 16730.

It is an arithmetic number, because the mean of its divisors is an integer number (3892644).

Almost surely, 2^39666612 is an apocalyptic number.

It is an amenable number.

39666612 is an abundant number, since it is smaller than the sum of its proper divisors (53756844).

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

39666612 is a wasteful number, since it uses less digits than its factorization.

39666612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31007 (or 31005 counting only the distinct ones).

The product of its digits is 69984, while the sum is 39.

The square root of 39666612 is about 6298.1435359953. The cubic root of 39666612 is about 341.0423948919.

The spelling of 39666612 in words is "thirty-nine million, six hundred sixty-six thousand, six hundred twelve".