500865487 has 2 divisors, whose sum is σ = 500865488. Its totient is φ = 500865486.

The previous prime is 500865461. The next prime is 500865499. The reversal of 500865487 is 784568005.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 500865487 - 2¹⁵ = 500832719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500865187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250432743 + 250432744.

It is an arithmetic number, because the mean of its divisors is an integer number (250432744).

Almost surely, 2^500865487 is an apocalyptic number.

500865487 is a deficient number, since it is larger than the sum of its proper divisors (1).

500865487 is an equidigital number, since it uses as much as digits as its factorization.

500865487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 500865487 is about 22380.0242850628. The cubic root of 500865487 is about 794.1582203247.

The spelling of 500865487 in words is "five hundred million, eight hundred sixty-five thousand, four hundred eighty-seven".