79318229 has 4 divisors (see below), whose sum is σ = 80103660. Its totient is φ = 78532800.

The previous prime is 79318207. The next prime is 79318241. The reversal of 79318229 is 92281397.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 60871204 + 18447025 = 7802^2 + 4295^2 .

It is a cyclic number.

It is not a de Polignac number, because 79318229 - 2¹² = 79314133 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 (79318249) 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, 392564 + ... + 392765.

It is an arithmetic number, because the mean of its divisors is an integer number (20025915).

Almost surely, 2^79318229 is an apocalyptic number.

It is an amenable number.

79318229 is a deficient number, since it is larger than the sum of its proper divisors (785431).

79318229 is a wasteful number, since it uses less digits than its factorization.

79318229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785430.

The product of its digits is 54432, while the sum is 41.

The square root of 79318229 is about 8906.0782053607. The cubic root of 79318229 is about 429.6594184332.

The spelling of 79318229 in words is "seventy-nine million, three hundred eighteen thousand, two hundred twenty-nine".