79369491 has 16 divisors (see below), whose sum is σ = 109992960. Its totient is φ = 50846880.

The previous prime is 79369471. The next prime is 79369501. The reversal of 79369491 is 19496397.

It is not a de Polignac number, because 79369491 - 2⁹ = 79368979 is a prime.

It is a super-2 number, since 2×79369491² = 12599032203198162, 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 79369491.

It is not an unprimeable number, because it can be changed into a prime (79369421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17356 + ... + 21446.

It is an arithmetic number, because the mean of its divisors is an integer number (6874560).

Almost surely, 2^79369491 is an apocalyptic number.

79369491 is a deficient number, since it is larger than the sum of its proper divisors (30623469).

79369491 is a wasteful number, since it uses less digits than its factorization.

79369491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4346.

The product of its digits is 367416, while the sum is 48.

The square root of 79369491 is about 8908.9556627026. The cubic root of 79369491 is about 429.7519589848.

The spelling of 79369491 in words is "seventy-nine million, three hundred sixty-nine thousand, four hundred ninety-one".