79561351 has 2 divisors, whose sum is σ = 79561352. Its totient is φ = 79561350.

The previous prime is 79561333. The next prime is 79561357. The reversal of 79561351 is 15316597.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79561351 - 2⁹ = 79560839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79561351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79561357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39780675 + 39780676.

It is an arithmetic number, because the mean of its divisors is an integer number (39780676).

Almost surely, 2^79561351 is an apocalyptic number.

79561351 is a deficient number, since it is larger than the sum of its proper divisors (1).

79561351 is an equidigital number, since it uses as much as digits as its factorization.

79561351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28350, while the sum is 37.

The square root of 79561351 is about 8919.7169798150. The cubic root of 79561351 is about 430.0979603748.

It can be divided in two parts, 795613 and 51, that added together give a square (795664 = 892²).

The spelling of 79561351 in words is "seventy-nine million, five hundred sixty-one thousand, three hundred fifty-one".