86242559 has 6 divisors (see below), whose sum is σ = 93387096. Its totient is φ = 79608360.

The previous prime is 86242543. The next prime is 86242567. The reversal of 86242559 is 95524268.

It is not a de Polignac number, because 86242559 - 2⁴ = 86242543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86242529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 254987 + ... + 255324.

It is an arithmetic number, because the mean of its divisors is an integer number (15564516).

Almost surely, 2^86242559 is an apocalyptic number.

86242559 is a deficient number, since it is larger than the sum of its proper divisors (7144537).

86242559 is a wasteful number, since it uses less digits than its factorization.

86242559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510337 (or 510324 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The square root of 86242559 is about 9286.6871918893. The cubic root of 86242559 is about 441.8150898973.

The spelling of 86242559 in words is "eighty-six million, two hundred forty-two thousand, five hundred fifty-nine".