86656459 has 4 divisors (see below), whose sum is σ = 86682960. Its totient is φ = 86629960.

The previous prime is 86656447. The next prime is 86656483. The reversal of 86656459 is 95465668.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86656459 - 2¹¹ = 86654411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86656499) 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 3 ways as a sum of consecutive naturals, for example, 7519 + ... + 15160.

It is an arithmetic number, because the mean of its divisors is an integer number (21670740).

Almost surely, 2^86656459 is an apocalyptic number.

86656459 is a deficient number, since it is larger than the sum of its proper divisors (26501).

86656459 is a wasteful number, since it uses less digits than its factorization.

86656459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26500.

The product of its digits is 1555200, while the sum is 49.

The square root of 86656459 is about 9308.9451067240. The cubic root of 86656459 is about 442.5207565779.

The spelling of 86656459 in words is "eighty-six million, six hundred fifty-six thousand, four hundred fifty-nine".