92991 has 8 divisors (see below), whose sum is σ = 125440. Its totient is φ = 61272.

The previous prime is 92987. The next prime is 92993. The reversal of 92991 is 19929.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 92991 - 2² = 92987 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (92993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306 + ... + 528.

It is an arithmetic number, because the mean of its divisors is an integer number (15680).

2⁹²⁹⁹¹ is an apocalyptic number.

92991 is a deficient number, since it is larger than the sum of its proper divisors (32449).

92991 is a wasteful number, since it uses less digits than its factorization.

92991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365.

The product of its digits is 1458, while the sum is 30.

The square root of 92991 is about 304.9442572012. The cubic root of 92991 is about 45.3050874121.

Adding to 92991 its product of digits (1458), we get a palindrome (94449).

The spelling of 92991 in words is "ninety-two thousand, nine hundred ninety-one".