523117 has 4 divisors (see below), whose sum is σ = 597856. Its totient is φ = 448380.

The previous prime is 523109. The next prime is 523129. The reversal of 523117 is 711325.

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 523117 - 2³ = 523109 is a prime.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 523094 and 523103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523177) 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, 37359 + ... + 37372.

It is an arithmetic number, because the mean of its divisors is an integer number (149464).

2⁵²³¹¹⁷ is an apocalyptic number.

It is an amenable number.

523117 is a deficient number, since it is larger than the sum of its proper divisors (74739).

523117 is an equidigital number, since it uses as much as digits as its factorization.

523117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74738.

The product of its digits is 210, while the sum is 19.

The square root of 523117 is about 723.2682766443. The cubic root of 523117 is about 80.5748695839.

The spelling of 523117 in words is "five hundred twenty-three thousand, one hundred seventeen".