82215292 has 6 divisors (see below), whose sum is σ = 143876768. Its totient is φ = 41107644.

The previous prime is 82215257. The next prime is 82215311. The reversal of 82215292 is 29251228.

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 as a sum of consecutive naturals, namely, 10276908 + ... + 10276915.

Almost surely, 2^82215292 is an apocalyptic number.

It is an amenable number.

82215292 is a deficient number, since it is larger than the sum of its proper divisors (61661476).

82215292 is a wasteful number, since it uses less digits than its factorization.

82215292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20553827 (or 20553825 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 82215292 is about 9067.2648577176. The cubic root of 82215292 is about 434.8280326113.

The spelling of 82215292 in words is "eighty-two million, two hundred fifteen thousand, two hundred ninety-two".