79882161 has 4 divisors (see below), whose sum is σ = 106509552. Its totient is φ = 53254772.

The previous prime is 79882147. The next prime is 79882163. The reversal of 79882161 is 16128897.

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.

It is a cyclic number.

It is not a de Polignac number, because 79882161 - 2⁵ = 79882129 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (79882163) 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, 13313691 + ... + 13313696.

It is an arithmetic number, because the mean of its divisors is an integer number (26627388).

Almost surely, 2^79882161 is an apocalyptic number.

It is an amenable number.

79882161 is a deficient number, since it is larger than the sum of its proper divisors (26627391).

79882161 is a wasteful number, since it uses less digits than its factorization.

79882161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26627390.

The product of its digits is 48384, while the sum is 42.

The square root of 79882161 is about 8937.6820820613. The cubic root of 79882161 is about 430.6752703532.

The spelling of 79882161 in words is "seventy-nine million, eight hundred eighty-two thousand, one hundred sixty-one".