79332731 has 4 divisors (see below), whose sum is σ = 80224200. Its totient is φ = 78441264.

The previous prime is 79332703. The next prime is 79332739. The reversal of 79332731 is 13723397.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13723397 = 41 ⋅334717.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79332731 is a prime.

It is a super-2 number, since 2×79332731² = 12587364415836722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79332691 and 79332700.

It is not an unprimeable number, because it can be changed into a prime (79332739) 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, 445601 + ... + 445778.

It is an arithmetic number, because the mean of its divisors is an integer number (20056050).

Almost surely, 2^79332731 is an apocalyptic number.

79332731 is a deficient number, since it is larger than the sum of its proper divisors (891469).

79332731 is an equidigital number, since it uses as much as digits as its factorization.

79332731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891468.

The product of its digits is 23814, while the sum is 35.

The square root of 79332731 is about 8906.8923312231. The cubic root of 79332731 is about 429.6856021629.

The spelling of 79332731 in words is "seventy-nine million, three hundred thirty-two thousand, seven hundred thirty-one".