86772812 has 12 divisors (see below), whose sum is σ = 173545680. Its totient is φ = 37188336.

The previous prime is 86772809. The next prime is 86772817. The reversal of 86772812 is 21827768.

86772812 is an admirable number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 86772812.

It is not an unprimeable number, because it can be changed into a prime (86772817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1549487 + ... + 1549542.

It is an arithmetic number, because the mean of its divisors is an integer number (14462140).

Almost surely, 2^86772812 is an apocalyptic number.

It is an amenable number.

86772812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

86772812 is a wasteful number, since it uses less digits than its factorization.

86772812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3099040 (or 3099038 counting only the distinct ones).

The product of its digits is 75264, while the sum is 41.

The square root of 86772812 is about 9315.1925369259. The cubic root of 86772812 is about 442.7187244728.

The spelling of 86772812 in words is "eighty-six million, seven hundred seventy-two thousand, eight hundred twelve".