523404017 has 2 divisors, whose sum is σ = 523404018. Its totient is φ = 523404016.

The previous prime is 523403999. The next prime is 523404053. The reversal of 523404017 is 710404325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 423083761 + 100320256 = 20569^2 + 10016^2 .

It is a cyclic number.

It is not a de Polignac number, because 523404017 - 2⁶ = 523403953 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (523404617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261702008 + 261702009.

It is an arithmetic number, because the mean of its divisors is an integer number (261702009).

Almost surely, 2^523404017 is an apocalyptic number.

It is an amenable number.

523404017 is a deficient number, since it is larger than the sum of its proper divisors (1).

523404017 is an equidigital number, since it uses as much as digits as its factorization.

523404017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 523404017 is about 22878.0247617665. The cubic root of 523404017 is about 805.8960314514.

The spelling of 523404017 in words is "five hundred twenty-three million, four hundred four thousand, seventeen".