86840255 has 16 divisors (see below), whose sum is σ = 109033344. Its totient is φ = 66328320.

The previous prime is 86840183. The next prime is 86840261. The reversal of 86840255 is 55204868.

It is not a de Polignac number, because 86840255 - 2¹⁸ = 86578111 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 15 ways as a sum of consecutive naturals, for example, 5129 + ... + 14141.

It is an arithmetic number, because the mean of its divisors is an integer number (6814584).

Almost surely, 2^86840255 is an apocalyptic number.

86840255 is a deficient number, since it is larger than the sum of its proper divisors (22193089).

86840255 is a wasteful number, since it uses less digits than its factorization.

86840255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9106.

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 86840255 is about 9318.8118877891. The cubic root of 86840255 is about 442.8333938258.

The spelling of 86840255 in words is "eighty-six million, eight hundred forty thousand, two hundred fifty-five".