82221326 has 16 divisors (see below), whose sum is σ = 138181680. Its totient is φ = 36362880.

The previous prime is 82221319. The next prime is 82221431. The reversal of 82221326 is 62312228.

It is a junction number, because it is equal to n+sod(n) for n = 82221295 and 82221304.

It is a congruent number.

It is an unprimeable number.

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, 49691 + ... + 51318.

It is an arithmetic number, because the mean of its divisors is an integer number (8636355).

Almost surely, 2^82221326 is an apocalyptic number.

82221326 is a deficient number, since it is larger than the sum of its proper divisors (55960354).

82221326 is a wasteful number, since it uses less digits than its factorization.

82221326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101059.

The product of its digits is 2304, while the sum is 26.

The square root of 82221326 is about 9067.5975870128. The cubic root of 82221326 is about 434.8386700815.

The spelling of 82221326 in words is "eighty-two million, two hundred twenty-one thousand, three hundred twenty-six".