86988155 has 8 divisors (see below), whose sum is σ = 105559200. Its totient is φ = 68808256.

The previous prime is 86988149. The next prime is 86988173. The reversal of 86988155 is 55188968.

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 86988155 - 2⁸ = 86987899 is a prime.

It is a super-2 number, since 2×86988155² = 15133878220608050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97295 + ... + 98184.

It is an arithmetic number, because the mean of its divisors is an integer number (13194900).

Almost surely, 2^86988155 is an apocalyptic number.

86988155 is a deficient number, since it is larger than the sum of its proper divisors (18571045).

86988155 is a wasteful number, since it uses less digits than its factorization.

86988155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195573.

The product of its digits is 691200, while the sum is 50.

The square root of 86988155 is about 9326.7440728263. The cubic root of 86988155 is about 443.0846517704.

The spelling of 86988155 in words is "eighty-six million, nine hundred eighty-eight thousand, one hundred fifty-five".