91892 has 6 divisors (see below), whose sum is σ = 160818. Its totient is φ = 45944.

The previous prime is 91873. The next prime is 91909. The reversal of 91892 is 29819.

It can be written as a sum of positive squares in only one way, i.e., 80656 + 11236 = 284^2 + 106^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

91892 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11483 + ... + 11490.

It is an arithmetic number, because the mean of its divisors is an integer number (26803).

2⁹¹⁸⁹² is an apocalyptic number.

It is an amenable number.

91892 is a deficient number, since it is larger than the sum of its proper divisors (68926).

91892 is a wasteful number, since it uses less digits than its factorization.

91892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22977 (or 22975 counting only the distinct ones).

The product of its digits is 1296, while the sum is 29.

The square root of 91892 is about 303.1369327548. The cubic root of 91892 is about 45.1259025610.

The spelling of 91892 in words is "ninety-one thousand, eight hundred ninety-two".