86538331 has 16 divisors (see below), whose sum is σ = 101808000. Its totient is φ = 72705600.

The previous prime is 86538323. The next prime is 86538337. The reversal of 86538331 is 13383568.

It is not a de Polignac number, because 86538331 - 2³ = 86538323 is a prime.

It is a super-2 number, since 2×86538331² = 14977765464531122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86538337) 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, 3520 + ... + 13618.

It is an arithmetic number, because the mean of its divisors is an integer number (6363000).

Almost surely, 2^86538331 is an apocalyptic number.

86538331 is a deficient number, since it is larger than the sum of its proper divisors (15269669).

86538331 is a wasteful number, since it uses less digits than its factorization.

86538331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10170.

The product of its digits is 51840, while the sum is 37.

The square root of 86538331 is about 9302.5980779565. The cubic root of 86538331 is about 442.3195872576.

The spelling of 86538331 in words is "eighty-six million, five hundred thirty-eight thousand, three hundred thirty-one".