93891 has 16 divisors (see below), whose sum is σ = 152064. Its totient is φ = 50304.

The previous prime is 93889. The next prime is 93893. The reversal of 93891 is 19839.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (93889) and next prime (93893).

It is not a de Polignac number, because 93891 - 2¹ = 93889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (93893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226 + ... + 488.

It is an arithmetic number, because the mean of its divisors is an integer number (9504).

2⁹³⁸⁹¹ is an apocalyptic number.

93891 is a deficient number, since it is larger than the sum of its proper divisors (58173).

93891 is a wasteful number, since it uses less digits than its factorization.

93891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290.

The product of its digits is 1944, while the sum is 30.

The square root of 93891 is about 306.4163833740. The cubic root of 93891 is about 45.4507779908.

It can be divided in two parts, 938 and 91, that multiplied together give a palindrome (85358).

The spelling of 93891 in words is "ninety-three thousand, eight hundred ninety-one".