79888265 has 4 divisors (see below), whose sum is σ = 95865924. Its totient is φ = 63910608.

The previous prime is 79888261. The next prime is 79888267. The reversal of 79888265 is 56288897.

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 21335161 + 58553104 = 4619^2 + 7652^2 .

It is a cyclic number.

It is not a de Polignac number, because 79888265 - 2² = 79888261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (79888261) 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, 7988822 + ... + 7988831.

It is an arithmetic number, because the mean of its divisors is an integer number (23966481).

Almost surely, 2^79888265 is an apocalyptic number.

It is an amenable number.

79888265 is a deficient number, since it is larger than the sum of its proper divisors (15977659).

79888265 is a wasteful number, since it uses less digits than its factorization.

79888265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15977658.

The product of its digits is 1935360, while the sum is 53.

The square root of 79888265 is about 8938.0235510990. The cubic root of 79888265 is about 430.6862397397.

The spelling of 79888265 in words is "seventy-nine million, eight hundred eighty-eight thousand, two hundred sixty-five".