79622459 has 4 divisors (see below), whose sum is σ = 90997104. Its totient is φ = 68247816.

The previous prime is 79622449. The next prime is 79622479. The reversal of 79622459 is 95422697.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95422697 = 229 ⋅416693.

It is not a de Polignac number, because 79622459 - 2²⁰ = 78573883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79622419) 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, 5687312 + ... + 5687325.

It is an arithmetic number, because the mean of its divisors is an integer number (22749276).

Almost surely, 2^79622459 is an apocalyptic number.

79622459 is a deficient number, since it is larger than the sum of its proper divisors (11374645).

79622459 is a wasteful number, since it uses less digits than its factorization.

79622459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11374644.

The product of its digits is 272160, while the sum is 44.

The square root of 79622459 is about 8923.1417673373. The cubic root of 79622459 is about 430.2080460712.

The spelling of 79622459 in words is "seventy-nine million, six hundred twenty-two thousand, four hundred fifty-nine".