39968684 has 12 divisors (see below), whose sum is σ = 79937424. Its totient is φ = 17129424.

The previous prime is 39968681. The next prime is 39968689. The reversal of 39968684 is 48686993.

39968684 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (39968681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713699 + ... + 713754.

It is an arithmetic number, because the mean of its divisors is an integer number (6661452).

Almost surely, 2^39968684 is an apocalyptic number.

It is an amenable number.

39968684 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

39968684 is a wasteful number, since it uses less digits than its factorization.

39968684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427464 (or 1427462 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 53.

The square root of 39968684 is about 6322.0790884012. The cubic root of 39968684 is about 341.9059166895.

The spelling of 39968684 in words is "thirty-nine million, nine hundred sixty-eight thousand, six hundred eighty-four".