79991332 has 12 divisors (see below), whose sum is σ = 146071296. Its totient is φ = 38256680.

The previous prime is 79991279. The next prime is 79991383. The reversal of 79991332 is 23319997.

It is a super-2 number, since 2×79991332² = 12797226390268448, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434644 + ... + 434827.

It is an arithmetic number, because the mean of its divisors is an integer number (12172608).

Almost surely, 2^79991332 is an apocalyptic number.

It is an amenable number.

79991332 is a deficient number, since it is larger than the sum of its proper divisors (66079964).

79991332 is a wasteful number, since it uses less digits than its factorization.

79991332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869498 (or 869496 counting only the distinct ones).

The product of its digits is 91854, while the sum is 43.

The square root of 79991332 is about 8943.7873409423. The cubic root of 79991332 is about 430.8713752444.

The spelling of 79991332 in words is "seventy-nine million, nine hundred ninety-one thousand, three hundred thirty-two".