86899239 has 12 divisors (see below), whose sum is σ = 143452816. Its totient is φ = 49656672.

The previous prime is 86899229. The next prime is 86899247. The reversal of 86899239 is 93299868.

It is not a de Polignac number, because 86899239 - 2¹⁵ = 86866471 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 (86899229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 689614 + ... + 689739.

Almost surely, 2^86899239 is an apocalyptic number.

86899239 is a deficient number, since it is larger than the sum of its proper divisors (56553577).

86899239 is a wasteful number, since it uses less digits than its factorization.

86899239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379366 (or 1379363 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The square root of 86899239 is about 9321.9761317008. The cubic root of 86899239 is about 442.9336321824.

The spelling of 86899239 in words is "eighty-six million, eight hundred ninety-nine thousand, two hundred thirty-nine".