79560839 has 2 divisors, whose sum is σ = 79560840. Its totient is φ = 79560838.

The previous prime is 79560781. The next prime is 79560857. The reversal of 79560839 is 93806597.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79560839 - 2¹⁶ = 79495303 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 79560793 and 79560802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79560889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39780419 + 39780420.

It is an arithmetic number, because the mean of its divisors is an integer number (39780420).

Almost surely, 2^79560839 is an apocalyptic number.

79560839 is a deficient number, since it is larger than the sum of its proper divisors (1).

79560839 is an equidigital number, since it uses as much as digits as its factorization.

79560839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 79560839 is about 8919.6882793066. The cubic root of 79560839 is about 430.0970377718.

The spelling of 79560839 in words is "seventy-nine million, five hundred sixty thousand, eight hundred thirty-nine".