86853879 has 24 divisors (see below), whose sum is σ = 143863200. Its totient is φ = 49462848.

The previous prime is 86853859. The next prime is 86853881. The reversal of 86853879 is 97835868.

It is a happy number.

It is not a de Polignac number, because 86853879 - 2⁸ = 86853623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86853859) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17797 + ... + 22145.

It is an arithmetic number, because the mean of its divisors is an integer number (5994300).

Almost surely, 2^86853879 is an apocalyptic number.

86853879 is a deficient number, since it is larger than the sum of its proper divisors (57009321).

86853879 is a wasteful number, since it uses less digits than its factorization.

86853879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4679 (or 4676 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 86853879 is about 9319.5428535953. The cubic root of 86853879 is about 442.8565507004.

The spelling of 86853879 in words is "eighty-six million, eight hundred fifty-three thousand, eight hundred seventy-nine".