82636512 has 48 divisors (see below), whose sum is σ = 247911552. Its totient is φ = 23610240.

The previous prime is 82636471. The next prime is 82636513. The reversal of 82636512 is 21563628.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×82636512² = 13657586231052288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82636513) 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, 60814 + ... + 62157.

It is an arithmetic number, because the mean of its divisors is an integer number (5164824).

Almost surely, 2^82636512 is an apocalyptic number.

It is an amenable number.

82636512 is an abundant number, since it is smaller than the sum of its proper divisors (165275040).

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

82636512 is a wasteful number, since it uses less digits than its factorization.

82636512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122991 (or 122983 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 82636512 is about 9090.4626944947. The cubic root of 82636512 is about 435.5693641017.

The spelling of 82636512 in words is "eighty-two million, six hundred thirty-six thousand, five hundred twelve".