79412439 has 4 divisors (see below), whose sum is σ = 105883256. Its totient is φ = 52941624.

The previous prime is 79412413. The next prime is 79412453. The reversal of 79412439 is 93421497.

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

It is not a de Polignac number, because 79412439 - 2⁸ = 79412183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79412397 and 79412406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79412239) 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, 13235404 + ... + 13235409.

It is an arithmetic number, because the mean of its divisors is an integer number (26470814).

Almost surely, 2^79412439 is an apocalyptic number.

79412439 is a deficient number, since it is larger than the sum of its proper divisors (26470817).

79412439 is a wasteful number, since it uses less digits than its factorization.

79412439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26470816.

The product of its digits is 54432, while the sum is 39.

The square root of 79412439 is about 8911.3657202474. The cubic root of 79412439 is about 429.8294600446.

The spelling of 79412439 in words is "seventy-nine million, four hundred twelve thousand, four hundred thirty-nine".