39679868 has 24 divisors (see below), whose sum is σ = 70447104. Its totient is φ = 19554800.

The previous prime is 39679831. The next prime is 39679897. The reversal of 39679868 is 86897693.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127433 + ... + 127743.

It is an arithmetic number, because the mean of its divisors is an integer number (2935296).

Almost surely, 2^39679868 is an apocalyptic number.

It is an amenable number.

39679868 is a deficient number, since it is larger than the sum of its proper divisors (30767236).

39679868 is a wasteful number, since it uses less digits than its factorization.

39679868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673 (or 671 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 56.

The square root of 39679868 is about 6299.1958216903. The cubic root of 39679868 is about 341.0803811163.

The spelling of 39679868 in words is "thirty-nine million, six hundred seventy-nine thousand, eight hundred sixty-eight".