86788 has 12 divisors (see below), whose sum is σ = 163660. Its totient is φ = 40032.

The previous prime is 86783. The next prime is 86813. The reversal of 86788 is 88768.

It can be written as a sum of positive squares in 2 ways, for example, as 28224 + 58564 = 168^2 + 242^2 .

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (86783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 783 + ... + 886.

2⁸⁶⁷⁸⁸ is an apocalyptic number.

It is an amenable number.

86788 is a deficient number, since it is larger than the sum of its proper divisors (76872).

86788 is a wasteful number, since it uses less digits than its factorization.

86788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686 (or 1684 counting only the distinct ones).

The product of its digits is 21504, while the sum is 37.

The square root of 86788 is about 294.5980312222. The cubic root of 86788 is about 44.2744552915.

The spelling of 86788 in words is "eighty-six thousand, seven hundred eighty-eight".