82086380 has 12 divisors (see below), whose sum is σ = 172381440. Its totient is φ = 32834544.

The previous prime is 82086377. The next prime is 82086397. The reversal of 82086380 is 8368028.

It is a self number, because there is not a number n which added to its sum of digits gives 82086380.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2052140 + ... + 2052179.

It is an arithmetic number, because the mean of its divisors is an integer number (14365120).

Almost surely, 2^82086380 is an apocalyptic number.

It is an amenable number.

82086380 is an abundant number, since it is smaller than the sum of its proper divisors (90295060).

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

82086380 is a wasteful number, since it uses less digits than its factorization.

82086380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4104328 (or 4104326 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 82086380 is about 9060.1534203346. The cubic root of 82086380 is about 434.6006463874.

The spelling of 82086380 in words is "eighty-two million, eighty-six thousand, three hundred eighty".