82086012 has 18 divisors (see below), whose sum is σ = 207495288. Its totient is φ = 27361992.

The previous prime is 82086007. The next prime is 82086019. The reversal of 82086012 is 21068028.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×82086012² = 13476226732128288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82086019) 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, 1140048 + ... + 1140119.

It is an arithmetic number, because the mean of its divisors is an integer number (11527516).

Almost surely, 2^82086012 is an apocalyptic number.

It is an amenable number.

82086012 is an abundant number, since it is smaller than the sum of its proper divisors (125409276).

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

82086012 is a wasteful number, since it uses less digits than its factorization.

82086012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280177 (or 2280172 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 82086012 is about 9060.1331116049. The cubic root of 82086012 is about 434.5999969363.

The spelling of 82086012 in words is "eighty-two million, eighty-six thousand, twelve".