504791687 has 2 divisors, whose sum is σ = 504791688. Its totient is φ = 504791686.

The previous prime is 504791647. The next prime is 504791701. The reversal of 504791687 is 786197405.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 504791687 - 2⁸ = 504791431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (504791627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252395843 + 252395844.

It is an arithmetic number, because the mean of its divisors is an integer number (252395844).

Almost surely, 2^504791687 is an apocalyptic number.

504791687 is a deficient number, since it is larger than the sum of its proper divisors (1).

504791687 is an equidigital number, since it uses as much as digits as its factorization.

504791687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 504791687 is about 22467.5696727528. The cubic root of 504791687 is about 796.2279124610.

The spelling of 504791687 in words is "five hundred four million, seven hundred ninety-one thousand, six hundred eighty-seven".