86239851 has 16 divisors (see below), whose sum is σ = 120022560. Its totient is φ = 55028480.

The previous prime is 86239849. The next prime is 86239871. The reversal of 86239851 is 15893268.

It is a cyclic number.

It is not a de Polignac number, because 86239851 - 2¹ = 86239849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86239801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96 + ... + 13133.

It is an arithmetic number, because the mean of its divisors is an integer number (7501410).

Almost surely, 2^86239851 is an apocalyptic number.

86239851 is a deficient number, since it is larger than the sum of its proper divisors (33782709).

86239851 is a wasteful number, since it uses less digits than its factorization.

86239851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13326.

The product of its digits is 103680, while the sum is 42.

The square root of 86239851 is about 9286.5413906362. The cubic root of 86239851 is about 441.8104655455.

The spelling of 86239851 in words is "eighty-six million, two hundred thirty-nine thousand, eight hundred fifty-one".