79663271 has 4 divisors (see below), whose sum is σ = 79695000. Its totient is φ = 79631544.

The previous prime is 79663253. The next prime is 79663279. The reversal of 79663271 is 17236697.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79663271 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 (79663279) 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, 11741 + ... + 17238.

It is an arithmetic number, because the mean of its divisors is an integer number (19923750).

Almost surely, 2^79663271 is an apocalyptic number.

79663271 is a deficient number, since it is larger than the sum of its proper divisors (31729).

79663271 is a wasteful number, since it uses less digits than its factorization.

79663271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31728.

The product of its digits is 95256, while the sum is 41.

The square root of 79663271 is about 8925.4283370604. The cubic root of 79663271 is about 430.2815372780.

The spelling of 79663271 in words is "seventy-nine million, six hundred sixty-three thousand, two hundred seventy-one".