79731459 has 16 divisors (see below), whose sum is σ = 119582240. Its totient is φ = 53152848.

The previous prime is 79731437. The next prime is 79731481. The reversal of 79731459 is 95413797.

It is an interprime number because it is at equal distance from previous prime (79731437) and next prime (79731481).

It is not a de Polignac number, because 79731459 - 2⁵ = 79731427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79731499) 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, 16042 + ... + 20415.

It is an arithmetic number, because the mean of its divisors is an integer number (7473890).

Almost surely, 2^79731459 is an apocalyptic number.

79731459 is a deficient number, since it is larger than the sum of its proper divisors (39850781).

79731459 is an frugal number, since it uses more digits than its factorization.

79731459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36478 (or 36460 counting only the distinct ones).

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

The square root of 79731459 is about 8929.2473926978. The cubic root of 79731459 is about 430.4042691629.

The spelling of 79731459 in words is "seventy-nine million, seven hundred thirty-one thousand, four hundred fifty-nine".