82615216 has 10 divisors (see below), whose sum is σ = 160067012. Its totient is φ = 41307600.

The previous prime is 82615201. The next prime is 82615219. The reversal of 82615216 is 61251628.

It is not an unprimeable number, because it can be changed into a prime (82615219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2581710 + ... + 2581741.

Almost surely, 2^82615216 is an apocalyptic number.

It is an amenable number.

82615216 is a deficient number, since it is larger than the sum of its proper divisors (77451796).

82615216 is a wasteful number, since it uses less digits than its factorization.

82615216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5163459 (or 5163453 counting only the distinct ones).

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

The square root of 82615216 is about 9089.2912815026. The cubic root of 82615216 is about 435.5319444757.

The spelling of 82615216 in words is "eighty-two million, six hundred fifteen thousand, two hundred sixteen".