79419511 has 4 divisors (see below), whose sum is σ = 79440232. Its totient is φ = 79398792.

The previous prime is 79419503. The next prime is 79419517. The reversal of 79419511 is 11591497.

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

It is a cyclic number.

It is not a de Polignac number, because 79419511 - 2³ = 79419503 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 (79419517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2745 + ... + 12898.

It is an arithmetic number, because the mean of its divisors is an integer number (19860058).

Almost surely, 2^79419511 is an apocalyptic number.

79419511 is a deficient number, since it is larger than the sum of its proper divisors (20721).

79419511 is a wasteful number, since it uses less digits than its factorization.

79419511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20720.

The product of its digits is 11340, while the sum is 37.

The square root of 79419511 is about 8911.7625080564. The cubic root of 79419511 is about 429.8422190185.

The spelling of 79419511 in words is "seventy-nine million, four hundred nineteen thousand, five hundred eleven".