500489021 has 2 divisors, whose sum is σ = 500489022. Its totient is φ = 500489020.

The previous prime is 500488987. The next prime is 500489069. The reversal of 500489021 is 120984005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 324396121 + 176092900 = 18011^2 + 13270^2 .

It is a cyclic number.

It is not a de Polignac number, because 500489021 - 2¹⁸ = 500226877 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 (500489071) 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, 250244510 + 250244511.

It is an arithmetic number, because the mean of its divisors is an integer number (250244511).

Almost surely, 2^500489021 is an apocalyptic number.

It is an amenable number.

500489021 is a deficient number, since it is larger than the sum of its proper divisors (1).

500489021 is an equidigital number, since it uses as much as digits as its factorization.

500489021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 500489021 is about 22371.6119446052. The cubic root of 500489021 is about 793.9591991546.

The spelling of 500489021 in words is "five hundred million, four hundred eighty-nine thousand, twenty-one".