79935939 has 6 divisors (see below), whose sum is σ = 115463036. Its totient is φ = 53290620.

The previous prime is 79935929. The next prime is 79935953. The reversal of 79935939 is 93953997.

It is not a de Polignac number, because 79935939 - 2⁷ = 79935811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79935929) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4440877 + ... + 4440894.

Almost surely, 2^79935939 is an apocalyptic number.

79935939 is a deficient number, since it is larger than the sum of its proper divisors (35527097).

79935939 is a wasteful number, since it uses less digits than its factorization.

79935939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8881777 (or 8881774 counting only the distinct ones).

The product of its digits is 2066715, while the sum is 54.

The square root of 79935939 is about 8940.6900740379. The cubic root of 79935939 is about 430.7718945929.

The spelling of 79935939 in words is "seventy-nine million, nine hundred thirty-five thousand, nine hundred thirty-nine".