86831255 has 8 divisors (see below), whose sum is σ = 119082912. Its totient is φ = 59541408.

The previous prime is 86831219. The next prime is 86831281. The reversal of 86831255 is 55213868.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86831255 - 2¹⁶ = 86765719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1240412 + ... + 1240481.

It is an arithmetic number, because the mean of its divisors is an integer number (14885364).

Almost surely, 2^86831255 is an apocalyptic number.

86831255 is a deficient number, since it is larger than the sum of its proper divisors (32251657).

86831255 is a wasteful number, since it uses less digits than its factorization.

86831255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480905.

The product of its digits is 57600, while the sum is 38.

The square root of 86831255 is about 9318.3289810996. The cubic root of 86831255 is about 442.8180950904.

It can be divided in two parts, 868 and 31255, that added together give a palindrome (32123).

The spelling of 86831255 in words is "eighty-six million, eight hundred thirty-one thousand, two hundred fifty-five".