79513061 has 4 divisors (see below), whose sum is σ = 80860800. Its totient is φ = 78165324.

The previous prime is 79513051. The next prime is 79513067. The reversal of 79513061 is 16031597.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16031597 = 751 ⋅21347.

It is a de Polignac number, because none of the positive numbers 2^k-79513061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79513067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673781 + ... + 673898.

It is an arithmetic number, because the mean of its divisors is an integer number (20215200).

Almost surely, 2^79513061 is an apocalyptic number.

It is an amenable number.

79513061 is a deficient number, since it is larger than the sum of its proper divisors (1347739).

79513061 is a wasteful number, since it uses less digits than its factorization.

79513061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347738.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 79513061 is about 8917.0096444941. The cubic root of 79513061 is about 430.0109263494.

The spelling of 79513061 in words is "seventy-nine million, five hundred thirteen thousand, sixty-one".