79616539 has 2 divisors, whose sum is σ = 79616540. Its totient is φ = 79616538.

The previous prime is 79616531. The next prime is 79616549. The reversal of 79616539 is 93561697.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79616539 - 2³ = 79616531 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79616531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39808269 + 39808270.

It is an arithmetic number, because the mean of its divisors is an integer number (39808270).

Almost surely, 2^79616539 is an apocalyptic number.

79616539 is a deficient number, since it is larger than the sum of its proper divisors (1).

79616539 is an equidigital number, since it uses as much as digits as its factorization.

79616539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 306180, while the sum is 46.

The square root of 79616539 is about 8922.8100394439. The cubic root of 79616539 is about 430.1973836912.

The spelling of 79616539 in words is "seventy-nine million, six hundred sixteen thousand, five hundred thirty-nine".