523414993 has 2 divisors, whose sum is σ = 523414994. Its totient is φ = 523414992.

The previous prime is 523414981. The next prime is 523414999. The reversal of 523414993 is 399414325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 498494929 + 24920064 = 22327^2 + 4992^2 .

It is a cyclic number.

It is not a de Polignac number, because 523414993 - 2⁵ = 523414961 is a prime.

It is not a weakly prime, because it can be changed into another prime (523414999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261707496 + 261707497.

It is an arithmetic number, because the mean of its divisors is an integer number (261707497).

Almost surely, 2^523414993 is an apocalyptic number.

It is an amenable number.

523414993 is a deficient number, since it is larger than the sum of its proper divisors (1).

523414993 is an equidigital number, since it uses as much as digits as its factorization.

523414993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 40.

The square root of 523414993 is about 22878.2646413577. The cubic root of 523414993 is about 805.9016647370.

The spelling of 523414993 in words is "five hundred twenty-three million, four hundred fourteen thousand, nine hundred ninety-three".