79479269 has 4 divisors (see below), whose sum is σ = 79856160. Its totient is φ = 79102380.

The previous prime is 79479241. The next prime is 79479271. The reversal of 79479269 is 96297497.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96297497 = 367 ⋅262391.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79479269 is a prime.

It is a super-2 number, since 2×79479269² = 12633908401548722, which contains 22 as substring.

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 79479269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79479469) 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, 188129 + ... + 188550.

It is an arithmetic number, because the mean of its divisors is an integer number (19964040).

Almost surely, 2^79479269 is an apocalyptic number.

It is an amenable number.

79479269 is a deficient number, since it is larger than the sum of its proper divisors (376891).

79479269 is a wasteful number, since it uses less digits than its factorization.

79479269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376890.

The product of its digits is 1714608, while the sum is 53.

The square root of 79479269 is about 8915.1146375131. The cubic root of 79479269 is about 429.9500013977.

The spelling of 79479269 in words is "seventy-nine million, four hundred seventy-nine thousand, two hundred sixty-nine".