82215319 has 8 divisors (see below), whose sum is σ = 85176720. Its totient is φ = 79356760.

The previous prime is 82215311. The next prime is 82215323. The reversal of 82215319 is 91351228.

It is not a de Polignac number, because 82215319 - 2³ = 82215311 is a prime.

It is a super-2 number, since 2×82215319² = 13518717356543522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82215311) 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, 22704 + ... + 26074.

It is an arithmetic number, because the mean of its divisors is an integer number (10647090).

Almost surely, 2^82215319 is an apocalyptic number.

82215319 is a deficient number, since it is larger than the sum of its proper divisors (2961401).

82215319 is an frugal number, since it uses more digits than its factorization.

82215319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3458 (or 3400 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 82215319 is about 9067.2663465898. The cubic root of 82215319 is about 434.8280802113.

The spelling of 82215319 in words is "eighty-two million, two hundred fifteen thousand, three hundred nineteen".