523043399 has 2 divisors, whose sum is σ = 523043400. Its totient is φ = 523043398.

The previous prime is 523043371. The next prime is 523043413. The reversal of 523043399 is 993340325.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 523043399 - 2¹⁶ = 522977863 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523043309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261521699 + 261521700.

It is an arithmetic number, because the mean of its divisors is an integer number (261521700).

Almost surely, 2^523043399 is an apocalyptic number.

523043399 is a deficient number, since it is larger than the sum of its proper divisors (1).

523043399 is an equidigital number, since it uses as much as digits as its factorization.

523043399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 38.

The square root of 523043399 is about 22870.1420852604. The cubic root of 523043399 is about 805.7109052546.

The spelling of 523043399 in words is "five hundred twenty-three million, forty-three thousand, three hundred ninety-nine".