86322681 has 27 divisors (see below), whose sum is σ = 132408549. Its totient is φ = 54185112.

The previous prime is 86322673. The next prime is 86322683. The reversal of 86322681 is 18622368.

The square root of 86322681 is 9291.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 86322681 - 2³ = 86322673 is a prime.

It is a super-2 number, since 2×86322681² = 14903210510055522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86322683) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 529506 + ... + 529668.

Almost surely, 2^86322681 is an apocalyptic number.

86322681 is the 9291-st square number.

86322681 is the 4646-th centered octagonal number.

It is an amenable number.

86322681 is a deficient number, since it is larger than the sum of its proper divisors (46085868).

86322681 is a wasteful number, since it uses less digits than its factorization.

86322681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370 (or 185 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The cubic root of 86322681 is about 441.9518675022.

Multiplying 86322681 by its sum of digits (36), we get a square (3107616516 = 55746²).

The spelling of 86322681 in words is "eighty-six million, three hundred twenty-two thousand, six hundred eighty-one".