79394279 has 4 divisors (see below), whose sum is σ = 79415376. Its totient is φ = 79373184.

The previous prime is 79394261. The next prime is 79394291. The reversal of 79394279 is 97249397.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97249397 = 7 ⋅13892771.

It is a cyclic number.

It is not a de Polignac number, because 79394279 - 2¹² = 79390183 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 (79394219) 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, 3194 + ... + 12999.

It is an arithmetic number, because the mean of its divisors is an integer number (19853844).

Almost surely, 2^79394279 is an apocalyptic number.

79394279 is a deficient number, since it is larger than the sum of its proper divisors (21097).

79394279 is a wasteful number, since it uses less digits than its factorization.

79394279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21096.

The product of its digits is 857304, while the sum is 50.

The square root of 79394279 is about 8910.3467384833. The cubic root of 79394279 is about 429.7966931458.

The spelling of 79394279 in words is "seventy-nine million, three hundred ninety-four thousand, two hundred seventy-nine".