79143369 has 16 divisors (see below), whose sum is σ = 106627584. Its totient is φ = 52214400.

The previous prime is 79143329. The next prime is 79143377. The reversal of 79143369 is 96334197.

It is not a de Polignac number, because 79143369 - 2¹² = 79139273 is a prime.

It is a super-2 number, since 2×79143369² = 12527345713340322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79143369.

It is not an unprimeable number, because it can be changed into a prime (79143319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187779 + ... + 188199.

It is an arithmetic number, because the mean of its divisors is an integer number (6664224).

Almost surely, 2^79143369 is an apocalyptic number.

It is an amenable number.

79143369 is a deficient number, since it is larger than the sum of its proper divisors (27484215).

79143369 is a wasteful number, since it uses less digits than its factorization.

79143369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928.

The product of its digits is 122472, while the sum is 42.

The square root of 79143369 is about 8896.2558978483. The cubic root of 79143369 is about 429.3434527184.

The spelling of 79143369 in words is "seventy-nine million, one hundred forty-three thousand, three hundred sixty-nine".