504398087 has 2 divisors, whose sum is σ = 504398088. Its totient is φ = 504398086.

The previous prime is 504398039. The next prime is 504398093. The reversal of 504398087 is 780893405.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 504398087 - 2¹² = 504393991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (504398287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252199043 + 252199044.

It is an arithmetic number, because the mean of its divisors is an integer number (252199044).

Almost surely, 2^504398087 is an apocalyptic number.

504398087 is a deficient number, since it is larger than the sum of its proper divisors (1).

504398087 is an equidigital number, since it uses as much as digits as its factorization.

504398087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 504398087 is about 22458.8086727680. The cubic root of 504398087 is about 796.0209116961.

The spelling of 504398087 in words is "five hundred four million, three hundred ninety-eight thousand, eighty-seven".