86856123 has 8 divisors (see below), whose sum is σ = 116586000. Its totient is φ = 57515168.

The previous prime is 86856113. The next prime is 86856127. The reversal of 86856123 is 32165868.

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 86856123 - 2⁶ = 86856059 is a prime.

It is a super-2 number, since 2×86856123² = 15087972205182258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86856127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96708 + ... + 97601.

It is an arithmetic number, because the mean of its divisors is an integer number (14573250).

Almost surely, 2^86856123 is an apocalyptic number.

86856123 is a deficient number, since it is larger than the sum of its proper divisors (29729877).

86856123 is a wasteful number, since it uses less digits than its factorization.

86856123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194461.

The product of its digits is 69120, while the sum is 39.

The square root of 86856123 is about 9319.6632449891. The cubic root of 86856123 is about 442.8603646215.

The spelling of 86856123 in words is "eighty-six million, eight hundred fifty-six thousand, one hundred twenty-three".