86881892 has 6 divisors (see below), whose sum is σ = 152043318. Its totient is φ = 43440944.

The previous prime is 86881891. The next prime is 86881903. The reversal of 86881892 is 29818868.

It can be written as a sum of positive squares in only one way, i.e., 66324736 + 20557156 = 8144^2 + 4534^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 86881892.

It is not an unprimeable number, because it can be changed into a prime (86881891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10860233 + ... + 10860240.

It is an arithmetic number, because the mean of its divisors is an integer number (25340553).

Almost surely, 2^86881892 is an apocalyptic number.

It is an amenable number.

86881892 is a deficient number, since it is larger than the sum of its proper divisors (65161426).

86881892 is a wasteful number, since it uses less digits than its factorization.

86881892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21720477 (or 21720475 counting only the distinct ones).

The product of its digits is 442368, while the sum is 50.

The square root of 86881892 is about 9321.0456494966. The cubic root of 86881892 is about 442.9041571216.

The spelling of 86881892 in words is "eighty-six million, eight hundred eighty-one thousand, eight hundred ninety-two".