523404463 has 2 divisors, whose sum is σ = 523404464. Its totient is φ = 523404462.

The previous prime is 523404437. The next prime is 523404481. The reversal of 523404463 is 364404325.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523404463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523404433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261702231 + 261702232.

It is an arithmetic number, because the mean of its divisors is an integer number (261702232).

Almost surely, 2^523404463 is an apocalyptic number.

523404463 is a deficient number, since it is larger than the sum of its proper divisors (1).

523404463 is an equidigital number, since it uses as much as digits as its factorization.

523404463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 523404463 is about 22878.0345091094. The cubic root of 523404463 is about 805.8962603565.

Adding to 523404463 its reverse (364404325), we get a palindrome (887808788).

The spelling of 523404463 in words is "five hundred twenty-three million, four hundred four thousand, four hundred sixty-three".