79345791 has 32 divisors (see below), whose sum is σ = 140190720. Its totient is φ = 43366752.

The previous prime is 79345781. The next prime is 79345801. The reversal of 79345791 is 19754397.

79345791 is a `hidden beast` number, since 79 + 3 + 4 + 579 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (79345781) and next prime (79345801).

It is not a de Polignac number, because 79345791 - 2¹⁰ = 79344767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79345751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4780 + ... + 13473.

It is an arithmetic number, because the mean of its divisors is an integer number (4380960).

Almost surely, 2^79345791 is an apocalyptic number.

79345791 is a deficient number, since it is larger than the sum of its proper divisors (60844929).

79345791 is a wasteful number, since it uses less digits than its factorization.

79345791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18292 (or 18286 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 79345791 is about 8907.6254411600. The cubic root of 79345791 is about 429.7091795942.

The spelling of 79345791 in words is "seventy-nine million, three hundred forty-five thousand, seven hundred ninety-one".