7979312929 has 15 divisors (see below), whose sum is σ = 9313753553. Its totient is φ = 6835659348.

The previous prime is 7979312917. The next prime is 7979312947. The reversal of 7979312929 is 9292139797.

It is a happy number.

The square root of 7979312929 is 89327.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 7979312929 - 2⁷ = 7979312801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7979912929) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 4376112 + ... + 4377934.

Almost surely, 2^7979312929 is an apocalyptic number.

7979312929 is the 89327-th square number.

7979312929 is the 44664-th centered octagonal number.

It is an amenable number.

7979312929 is a deficient number, since it is larger than the sum of its proper divisors (1334440624).

7979312929 is an frugal number, since it uses more digits than its factorization.

7979312929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3674 (or 1830 counting only the distinct ones).

The product of its digits is 3857868, while the sum is 58.

The cubic root of 7979312929 is about 1998.2745893237.

The spelling of 7979312929 in words is "seven billion, nine hundred seventy-nine million, three hundred twelve thousand, nine hundred twenty-nine".