523397 has 4 divisors (see below), whose sum is σ = 598176. Its totient is φ = 448620.

The previous prime is 523387. The next prime is 523403. The reversal of 523397 is 793325.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 523397 - 2⁶ = 523333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523307) 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, 37379 + ... + 37392.

It is an arithmetic number, because the mean of its divisors is an integer number (149544).

2⁵²³³⁹⁷ is an apocalyptic number.

It is an amenable number.

523397 is a deficient number, since it is larger than the sum of its proper divisors (74779).

523397 is an equidigital number, since it uses as much as digits as its factorization.

523397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74778.

The product of its digits is 5670, while the sum is 29.

The square root of 523397 is about 723.4618165460. The cubic root of 523397 is about 80.5892430028.

The spelling of 523397 in words is "five hundred twenty-three thousand, three hundred ninety-seven".