86839855 has 8 divisors (see below), whose sum is σ = 104296752. Its totient is φ = 69412608.

The previous prime is 86839853. The next prime is 86839871. The reversal of 86839855 is 55893868.

It is a happy number.

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 86839855 - 2¹ = 86839853 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 (86839853) 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 7 ways as a sum of consecutive naturals, for example, 354 + ... + 13183.

It is an arithmetic number, because the mean of its divisors is an integer number (13037094).

Almost surely, 2^86839855 is an apocalyptic number.

86839855 is a deficient number, since it is larger than the sum of its proper divisors (17456897).

86839855 is a wasteful number, since it uses less digits than its factorization.

86839855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14825.

The product of its digits is 2073600, while the sum is 52.

The square root of 86839855 is about 9318.7904258010. The cubic root of 86839855 is about 442.8327139044.

The spelling of 86839855 in words is "eighty-six million, eight hundred thirty-nine thousand, eight hundred fifty-five".