79114821 has 32 divisors (see below), whose sum is σ = 116379648. Its totient is φ = 47589120.

The previous prime is 79114817. The next prime is 79114823. The reversal of 79114821 is 12841197.

It is not a de Polignac number, because 79114821 - 2² = 79114817 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79114823) 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 31 ways as a sum of consecutive naturals, for example, 257550 + ... + 257856.

It is an arithmetic number, because the mean of its divisors is an integer number (3636864).

Almost surely, 2^79114821 is an apocalyptic number.

It is an amenable number.

79114821 is a deficient number, since it is larger than the sum of its proper divisors (37264827).

79114821 is a wasteful number, since it uses less digits than its factorization.

79114821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521.

The product of its digits is 4032, while the sum is 33.

The square root of 79114821 is about 8894.6512579190. The cubic root of 79114821 is about 429.2918233313.

The spelling of 79114821 in words is "seventy-nine million, one hundred fourteen thousand, eight hundred twenty-one".