79910605 has 4 divisors (see below), whose sum is σ = 95892732. Its totient is φ = 63928480.

The previous prime is 79910581. The next prime is 79910609. The reversal of 79910605 is 50601997.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31427236 + 48483369 = 5606^2 + 6963^2 .

It is not a de Polignac number, because 79910605 - 2⁹ = 79910093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79910609) 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, 7991056 + ... + 7991065.

It is an arithmetic number, because the mean of its divisors is an integer number (23973183).

Almost surely, 2^79910605 is an apocalyptic number.

It is an amenable number.

79910605 is a deficient number, since it is larger than the sum of its proper divisors (15982127).

79910605 is a wasteful number, since it uses less digits than its factorization.

79910605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15982126.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 79910605 is about 8939.2731807457. The cubic root of 79910605 is about 430.7263817801.

The spelling of 79910605 in words is "seventy-nine million, nine hundred ten thousand, six hundred five".