79054491 has 4 divisors (see below), whose sum is σ = 105405992. Its totient is φ = 52702992.

The previous prime is 79054477. The next prime is 79054501. The reversal of 79054491 is 19445097.

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

It is not a de Polignac number, because 79054491 - 2⁷ = 79054363 is a prime.

It is a super-2 number, since 2×79054491² = 12499225094538162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79054441) 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, 13175746 + ... + 13175751.

It is an arithmetic number, because the mean of its divisors is an integer number (26351498).

Almost surely, 2^79054491 is an apocalyptic number.

79054491 is a deficient number, since it is larger than the sum of its proper divisors (26351501).

79054491 is a wasteful number, since it uses less digits than its factorization.

79054491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26351500.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 79054491 is about 8891.2592471483. The cubic root of 79054491 is about 429.1826749593.

The spelling of 79054491 in words is "seventy-nine million, fifty-four thousand, four hundred ninety-one".