86223561 has 16 divisors (see below), whose sum is σ = 117218688. Its totient is φ = 56361600.

The previous prime is 86223559. The next prime is 86223563. The reversal of 86223561 is 16532268.

It is an interprime number because it is at equal distance from previous prime (86223559) and next prime (86223563).

It is not a de Polignac number, because 86223561 - 2¹ = 86223559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86223563) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 83116 + ... + 84146.

It is an arithmetic number, because the mean of its divisors is an integer number (7326168).

Almost surely, 2^86223561 is an apocalyptic number.

It is an amenable number.

86223561 is a deficient number, since it is larger than the sum of its proper divisors (30995127).

86223561 is a wasteful number, since it uses less digits than its factorization.

86223561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552.

The product of its digits is 17280, while the sum is 33.

The square root of 86223561 is about 9285.6642734917. The cubic root of 86223561 is about 441.7826456703.

The spelling of 86223561 in words is "eighty-six million, two hundred twenty-three thousand, five hundred sixty-one".