82520766 has 12 divisors (see below), whose sum is σ = 178795032. Its totient is φ = 27506916.

The previous prime is 82520761. The next prime is 82520773. The reversal of 82520766 is 66702528.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 82520766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82520761) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2292226 + ... + 2292261.

It is an arithmetic number, because the mean of its divisors is an integer number (14899586).

Almost surely, 2^82520766 is an apocalyptic number.

82520766 is an abundant number, since it is smaller than the sum of its proper divisors (96274266).

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

82520766 is a wasteful number, since it uses less digits than its factorization.

82520766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4584495 (or 4584492 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 82520766 is about 9084.0941210448. The cubic root of 82520766 is about 435.3659069491.

The spelling of 82520766 in words is "eighty-two million, five hundred twenty thousand, seven hundred sixty-six".