91895 has 4 divisors (see below), whose sum is σ = 110280. Its totient is φ = 73512.

The previous prime is 91873. The next prime is 91909. The reversal of 91895 is 59819.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59819 = 41 ⋅1459.

It is a cyclic number.

It is not a de Polignac number, because 91895 - 2⁸ = 91639 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9185 + ... + 9194.

It is an arithmetic number, because the mean of its divisors is an integer number (27570).

2⁹¹⁸⁹⁵ is an apocalyptic number.

91895 is a deficient number, since it is larger than the sum of its proper divisors (18385).

91895 is a wasteful number, since it uses less digits than its factorization.

91895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18384.

The product of its digits is 3240, while the sum is 32.

The square root of 91895 is about 303.1418809732. The cubic root of 91895 is about 45.1263936310.

The spelling of 91895 in words is "ninety-one thousand, eight hundred ninety-five".