79506939 has 16 divisors (see below), whose sum is σ = 108564480. Its totient is φ = 51733440.

The previous prime is 79506937. The next prime is 79506941. The reversal of 79506939 is 93960597.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (79506937) and next prime (79506941).

It is not a de Polignac number, because 79506939 - 2¹ = 79506937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79506937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79734 + ... + 80724.

It is an arithmetic number, because the mean of its divisors is an integer number (6785280).

Almost surely, 2^79506939 is an apocalyptic number.

79506939 is a deficient number, since it is larger than the sum of its proper divisors (29057541).

79506939 is a wasteful number, since it uses less digits than its factorization.

79506939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610.

The product of its (nonzero) digits is 459270, while the sum is 48.

The square root of 79506939 is about 8916.6663613707. Note that the first 3 decimals coincide. The cubic root of 79506939 is about 429.9998900306. Note that the first 3 decimals are identical.

The spelling of 79506939 in words is "seventy-nine million, five hundred six thousand, nine hundred thirty-nine".