89231 has 2 divisors, whose sum is σ = 89232. Its totient is φ = 89230.

The previous prime is 89227. The next prime is 89237. The reversal of 89231 is 13298.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89231 - 2² = 89227 is a prime.

It is a super-2 number, since 2×89231² = 15924342722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 89197 and 89206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44615 + 44616.

It is an arithmetic number, because the mean of its divisors is an integer number (44616).

2⁸⁹²³¹ is an apocalyptic number.

89231 is a deficient number, since it is larger than the sum of its proper divisors (1).

89231 is an equidigital number, since it uses as much as digits as its factorization.

89231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 23.

The square root of 89231 is about 298.7155837917. The cubic root of 89231 is about 44.6860451545.

The spelling of 89231 in words is "eighty-nine thousand, two hundred thirty-one".