923231 has 4 divisors (see below), whose sum is σ = 935952. Its totient is φ = 910512.

The previous prime is 923227. The next prime is 923233. The reversal of 923231 is 132329.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 923231 - 2² = 923227 is a prime.

It is a super-2 number, since 2×923231² = 1704710958722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 923231.

It is not an unprimeable number, because it can be changed into a prime (923233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6251 + ... + 6396.

It is an arithmetic number, because the mean of its divisors is an integer number (233988).

2⁹²³²³¹ is an apocalyptic number.

923231 is a deficient number, since it is larger than the sum of its proper divisors (12721).

923231 is a wasteful number, since it uses less digits than its factorization.

923231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12720.

The product of its digits is 324, while the sum is 20.

The square root of 923231 is about 960.8491036578. The cubic root of 923231 is about 97.3726059176.

The spelling of 923231 in words is "nine hundred twenty-three thousand, two hundred thirty-one".