39673768 has 16 divisors (see below), whose sum is σ = 76399380. Its totient is φ = 19300608.

The previous prime is 39673763. The next prime is 39673787. The reversal of 39673768 is 86737693.

It can be written as a sum of positive squares in 2 ways, for example, as 36990724 + 2683044 = 6082^2 + 1638^2 .

It is not an unprimeable number, because it can be changed into a prime (39673763) 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, 66721 + ... + 67312.

Almost surely, 2^39673768 is an apocalyptic number.

It is an amenable number.

39673768 is a deficient number, since it is larger than the sum of its proper divisors (36725612).

39673768 is a wasteful number, since it uses less digits than its factorization.

39673768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134076 (or 134072 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 49.

The square root of 39673768 is about 6298.7116142907. The cubic root of 39673768 is about 341.0629020851.

The spelling of 39673768 in words is "thirty-nine million, six hundred seventy-three thousand, seven hundred sixty-eight".