79045561 has 16 divisors (see below), whose sum is σ = 93795840. Its totient is φ = 65177280.

The previous prime is 79045517. The next prime is 79045573. The reversal of 79045561 is 16554097.

It is not a de Polignac number, because 79045561 - 2⁷ = 79045433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79045561.

It is not an unprimeable number, because it can be changed into a prime (79045861) 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, 73971 + ... + 75031.

It is an arithmetic number, because the mean of its divisors is an integer number (5862240).

Almost surely, 2^79045561 is an apocalyptic number.

It is an amenable number.

79045561 is a deficient number, since it is larger than the sum of its proper divisors (14750279).

79045561 is a wasteful number, since it uses less digits than its factorization.

79045561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 79045561 is about 8890.7570543796. The cubic root of 79045561 is about 429.1665141839.

The spelling of 79045561 in words is "seventy-nine million, forty-five thousand, five hundred sixty-one".