531923 has 4 divisors (see below), whose sum is σ = 607920. Its totient is φ = 455928.

The previous prime is 531919. The next prime is 531977. The reversal of 531923 is 329135.

It is a happy number.

531923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 329135 = 5 ⋅65827.

It is a cyclic number.

It is not a de Polignac number, because 531923 - 2² = 531919 is a prime.

It is a d-powerful number, because it can be written as 5³ + 3⁵ + 9² + 1 + 2⁵ + 3¹² .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531983) 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, 37988 + ... + 38001.

It is an arithmetic number, because the mean of its divisors is an integer number (151980).

2⁵³¹⁹²³ is an apocalyptic number.

531923 is a deficient number, since it is larger than the sum of its proper divisors (75997).

531923 is an equidigital number, since it uses as much as digits as its factorization.

531923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75996.

The product of its digits is 810, while the sum is 23.

The square root of 531923 is about 729.3305149245. The cubic root of 531923 is about 81.0244807374.

The spelling of 531923 in words is "five hundred thirty-one thousand, nine hundred twenty-three".