79308397 has 4 divisors (see below), whose sum is σ = 90638176. Its totient is φ = 67978620.

The previous prime is 79308373. The next prime is 79308419. The reversal of 79308397 is 79380397.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79308397 - 2⁷ = 79308269 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 (79308197) 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, 5664879 + ... + 5664892.

It is an arithmetic number, because the mean of its divisors is an integer number (22659544).

Almost surely, 2^79308397 is an apocalyptic number.

It is an amenable number.

79308397 is a deficient number, since it is larger than the sum of its proper divisors (11329779).

79308397 is a wasteful number, since it uses less digits than its factorization.

79308397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11329778.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 79308397 is about 8905.5262056770. The cubic root of 79308397 is about 429.6416646919.

The spelling of 79308397 in words is "seventy-nine million, three hundred eight thousand, three hundred ninety-seven".