39968079 has 8 divisors (see below), whose sum is σ = 53339952. Its totient is φ = 26620800.

The previous prime is 39968063. The next prime is 39968081. The reversal of 39968079 is 97086993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39968079 - 2⁴ = 39968063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39968009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1944 + ... + 9149.

It is an arithmetic number, because the mean of its divisors is an integer number (6667494).

Almost surely, 2^39968079 is an apocalyptic number.

39968079 is a deficient number, since it is larger than the sum of its proper divisors (13371873).

39968079 is a wasteful number, since it uses less digits than its factorization.

39968079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12297.

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 39968079 is about 6322.0312400367. The cubic root of 39968079 is about 341.9041915546.

The spelling of 39968079 in words is "thirty-nine million, nine hundred sixty-eight thousand, seventy-nine".