79821326 has 16 divisors (see below), whose sum is σ = 129618384. Its totient is φ = 36647424.

The previous prime is 79821323. The next prime is 79821331. The reversal of 79821326 is 62312897.

It is a self number, because there is not a number n which added to its sum of digits gives 79821326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79821323) 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, 2936 + ... + 12971.

It is an arithmetic number, because the mean of its divisors is an integer number (8101149).

Almost surely, 2^79821326 is an apocalyptic number.

79821326 is a deficient number, since it is larger than the sum of its proper divisors (49797058).

79821326 is a wasteful number, since it uses less digits than its factorization.

79821326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16115.

The product of its digits is 36288, while the sum is 38.

The square root of 79821326 is about 8934.2781465544. The cubic root of 79821326 is about 430.5659143404.

The spelling of 79821326 in words is "seventy-nine million, eight hundred twenty-one thousand, three hundred twenty-six".