523493 has 2 divisors, whose sum is σ = 523494. Its totient is φ = 523492.

The previous prime is 523489. The next prime is 523511. The reversal of 523493 is 394325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 521284 + 2209 = 722^2 + 47^2 .

It is a cyclic number.

It is not a de Polignac number, because 523493 - 2² = 523489 is a prime.

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 523493.

It is not a weakly prime, because it can be changed into another prime (523403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261746 + 261747.

It is an arithmetic number, because the mean of its divisors is an integer number (261747).

2⁵²³⁴⁹³ is an apocalyptic number.

It is an amenable number.

523493 is a deficient number, since it is larger than the sum of its proper divisors (1).

523493 is an equidigital number, since it uses as much as digits as its factorization.

523493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 26.

The square root of 523493 is about 723.5281611658. The cubic root of 523493 is about 80.5941698521.

The spelling of 523493 in words is "five hundred twenty-three thousand, four hundred ninety-three".