79934391 has 16 divisors (see below), whose sum is σ = 125388000. Its totient is φ = 50154624.

The previous prime is 79934389. The next prime is 79934423. The reversal of 79934391 is 19343997.

It is not a de Polignac number, because 79934391 - 2¹ = 79934389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79934381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86616 + ... + 87533.

It is an arithmetic number, because the mean of its divisors is an integer number (7836750).

Almost surely, 2^79934391 is an apocalyptic number.

79934391 is a deficient number, since it is larger than the sum of its proper divisors (45453609).

79934391 is a wasteful number, since it uses less digits than its factorization.

79934391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174175 (or 174169 counting only the distinct ones).

The product of its digits is 183708, while the sum is 45.

The square root of 79934391 is about 8940.6035031199. The cubic root of 79934391 is about 430.7691138695.

The spelling of 79934391 in words is "seventy-nine million, nine hundred thirty-four thousand, three hundred ninety-one".