231893 has 2 divisors, whose sum is σ = 231894. Its totient is φ = 231892.

The previous prime is 231877. The next prime is 231901. The reversal of 231893 is 398132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117649 + 114244 = 343^2 + 338^2 .

It is a cyclic number.

It is not a de Polignac number, because 231893 - 2⁴ = 231877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115946 + 115947.

It is an arithmetic number, because the mean of its divisors is an integer number (115947).

2²³¹⁸⁹³ is an apocalyptic number.

It is an amenable number.

231893 is a deficient number, since it is larger than the sum of its proper divisors (1).

231893 is an equidigital number, since it uses as much as digits as its factorization.

231893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 26.

The square root of 231893 is about 481.5526970125. The cubic root of 231893 is about 61.4368885697.

The spelling of 231893 in words is "two hundred thirty-one thousand, eight hundred ninety-three".