79521119 has 2 divisors, whose sum is σ = 79521120. Its totient is φ = 79521118.

The previous prime is 79521109. The next prime is 79521157. The reversal of 79521119 is 91112597.

It is a weak prime.

It is an emirp because it is prime and its reverse (91112597) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79521119 - 2⁸ = 79520863 is a prime.

It is a super-2 number, since 2×79521119² = 12647216734024322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79521109) 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 as a sum of consecutive naturals, namely, 39760559 + 39760560.

It is an arithmetic number, because the mean of its divisors is an integer number (39760560).

Almost surely, 2^79521119 is an apocalyptic number.

79521119 is a deficient number, since it is larger than the sum of its proper divisors (1).

79521119 is an equidigital number, since it uses as much as digits as its factorization.

79521119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5670, while the sum is 35.

The square root of 79521119 is about 8917.4614661349. The cubic root of 79521119 is about 430.0254518917.

The spelling of 79521119 in words is "seventy-nine million, five hundred twenty-one thousand, one hundred nineteen".