923513 has 2 divisors, whose sum is σ = 923514. Its totient is φ = 923512.

The previous prime is 923509. The next prime is 923539. The reversal of 923513 is 315329.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 573049 + 350464 = 757^2 + 592^2 .

It is a cyclic number.

It is not a de Polignac number, because 923513 - 2² = 923509 is a prime.

It is a super-2 number, since 2×923513² = 1705752522338, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (923543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461756 + 461757.

It is an arithmetic number, because the mean of its divisors is an integer number (461757).

923513 is a Friedman number, since it can be written as 31^(9-5)-2^3, using all its digits and the basic arithmetic operations.

2⁹²³⁵¹³ is an apocalyptic number.

It is an amenable number.

923513 is a deficient number, since it is larger than the sum of its proper divisors (1).

923513 is an equidigital number, since it uses as much as digits as its factorization.

923513 is an evil number, because the sum of its binary digits is even.

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

The square root of 923513 is about 960.9958376601. The cubic root of 923513 is about 97.3825190305.

The spelling of 923513 in words is "nine hundred twenty-three thousand, five hundred thirteen".