523289 has 4 divisors (see below), whose sum is σ = 563556. Its totient is φ = 483024.

The previous prime is 523261. The next prime is 523297. The reversal of 523289 is 982325.

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

It can be written as a sum of positive squares in 2 ways, for example, as 265225 + 258064 = 515^2 + 508^2 .

It is a cyclic number.

It is not a de Polignac number, because 523289 - 2¹² = 519193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (523219) 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, 20114 + ... + 20139.

It is an arithmetic number, because the mean of its divisors is an integer number (140889).

2⁵²³²⁸⁹ is an apocalyptic number.

It is an amenable number.

523289 is a deficient number, since it is larger than the sum of its proper divisors (40267).

523289 is a wasteful number, since it uses less digits than its factorization.

523289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40266.

The product of its digits is 4320, while the sum is 29.

The square root of 523289 is about 723.3871715755. The cubic root of 523289 is about 80.5836995773.

The spelling of 523289 in words is "five hundred twenty-three thousand, two hundred eighty-nine".