79816331 has 8 divisors (see below), whose sum is σ = 91300320. Its totient is φ = 68352768.

The previous prime is 79816327. The next prime is 79816333. The reversal of 79816331 is 13361897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79816331 - 2² = 79816327 is a prime.

It is a super-2 number, since 2×79816331² = 12741293388603122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79816333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4475 + ... + 13403.

It is an arithmetic number, because the mean of its divisors is an integer number (11412540).

Almost surely, 2^79816331 is an apocalyptic number.

79816331 is a deficient number, since it is larger than the sum of its proper divisors (11483989).

79816331 is a wasteful number, since it uses less digits than its factorization.

79816331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10213.

The product of its digits is 27216, while the sum is 38.

The square root of 79816331 is about 8933.9986008506. The cubic root of 79816331 is about 430.5569329411.

The spelling of 79816331 in words is "seventy-nine million, eight hundred sixteen thousand, three hundred thirty-one".