88091 has 4 divisors (see below), whose sum is σ = 88872. Its totient is φ = 87312.

The previous prime is 88079. The next prime is 88093. The reversal of 88091 is 19088.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 88091 - 2¹⁴ = 71707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88091.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 88091.

It is not an unprimeable number, because it can be changed into a prime (88093) 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, 185 + ... + 458.

It is an arithmetic number, because the mean of its divisors is an integer number (22218).

2⁸⁸⁰⁹¹ is an apocalyptic number.

88091 is a deficient number, since it is larger than the sum of its proper divisors (781).

88091 is a wasteful number, since it uses less digits than its factorization.

88091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 88091 is about 296.8012803207. The cubic root of 88091 is about 44.4949285135.

The spelling of 88091 in words is "eighty-eight thousand, ninety-one".