523039393 has 2 divisors, whose sum is σ = 523039394. Its totient is φ = 523039392.

The previous prime is 523039381. The next prime is 523039397. The reversal of 523039393 is 393930325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 522716769 + 322624 = 22863^2 + 568^2 .

It is a cyclic number.

It is not a de Polignac number, because 523039393 - 2²¹ = 520942241 is a prime.

It is not a weakly prime, because it can be changed into another prime (523039397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261519696 + 261519697.

It is an arithmetic number, because the mean of its divisors is an integer number (261519697).

Almost surely, 2^523039393 is an apocalyptic number.

It is an amenable number.

523039393 is a deficient number, since it is larger than the sum of its proper divisors (1).

523039393 is an equidigital number, since it uses as much as digits as its factorization.

523039393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65610, while the sum is 37.

The square root of 523039393 is about 22870.0545036517. The cubic root of 523039393 is about 805.7088482640.

The spelling of 523039393 in words is "five hundred twenty-three million, thirty-nine thousand, three hundred ninety-three".