523931297 has 2 divisors, whose sum is σ = 523931298. Its totient is φ = 523931296.

The previous prime is 523931273. The next prime is 523931311. The reversal of 523931297 is 792139325.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 499567201 + 24364096 = 22351^2 + 4936^2 .

It is a cyclic number.

It is not a de Polignac number, because 523931297 - 2¹⁴ = 523914913 is a prime.

It is a super-2 number, since 2×523931297² = 549008007952204418, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (523931267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261965648 + 261965649.

It is an arithmetic number, because the mean of its divisors is an integer number (261965649).

Almost surely, 2^523931297 is an apocalyptic number.

It is an amenable number.

523931297 is a deficient number, since it is larger than the sum of its proper divisors (1).

523931297 is an equidigital number, since it uses as much as digits as its factorization.

523931297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 41.

The square root of 523931297 is about 22889.5455830822. The cubic root of 523931297 is about 806.1665619481.

The spelling of 523931297 in words is "five hundred twenty-three million, nine hundred thirty-one thousand, two hundred ninety-seven".