82564212 has 24 divisors (see below), whose sum is σ = 192953376. Its totient is φ = 27478048.

The previous prime is 82564211. The next prime is 82564219. The reversal of 82564212 is 21246528.

It is a self number, because there is not a number n which added to its sum of digits gives 82564212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82564211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3043 + ... + 13205.

It is an arithmetic number, because the mean of its divisors is an integer number (8039724).

Almost surely, 2^82564212 is an apocalyptic number.

It is an amenable number.

82564212 is an abundant number, since it is smaller than the sum of its proper divisors (110389164).

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

82564212 is a wasteful number, since it uses less digits than its factorization.

82564212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10847 (or 10845 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 82564212 is about 9086.4851290254. The cubic root of 82564212 is about 435.4422981800.

The spelling of 82564212 in words is "eighty-two million, five hundred sixty-four thousand, two hundred twelve".