500982821 has 2 divisors, whose sum is σ = 500982822. Its totient is φ = 500982820.

The previous prime is 500982793. The next prime is 500982913. The reversal of 500982821 is 128289005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 462852196 + 38130625 = 21514^2 + 6175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500982821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500682821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250491410 + 250491411.

It is an arithmetic number, because the mean of its divisors is an integer number (250491411).

Almost surely, 2^500982821 is an apocalyptic number.

It is an amenable number.

500982821 is a deficient number, since it is larger than the sum of its proper divisors (1).

500982821 is an equidigital number, since it uses as much as digits as its factorization.

500982821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 500982821 is about 22382.6455317507. The cubic root of 500982821 is about 794.2202293122.

The spelling of 500982821 in words is "five hundred million, nine hundred eighty-two thousand, eight hundred twenty-one".