82217796 has 12 divisors (see below), whose sum is σ = 191841552. Its totient is φ = 27405928.

The previous prime is 82217747. The next prime is 82217803. The reversal of 82217796 is 69771228.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3425730 + ... + 3425753.

It is an arithmetic number, because the mean of its divisors is an integer number (15986796).

Almost surely, 2^82217796 is an apocalyptic number.

It is an amenable number.

82217796 is an abundant number, since it is smaller than the sum of its proper divisors (109623756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82217796 is a wasteful number, since it uses less digits than its factorization.

82217796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6851490 (or 6851488 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 82217796 is about 9067.4029357915. The cubic root of 82217796 is about 434.8324470307.

The spelling of 82217796 in words is "eighty-two million, two hundred seventeen thousand, seven hundred ninety-six".