500939917 has 2 divisors, whose sum is σ = 500939918. Its totient is φ = 500939916.

The previous prime is 500939909. The next prime is 500939951. The reversal of 500939917 is 719939005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 488365801 + 12574116 = 22099^2 + 3546^2 .

It is a cyclic number.

It is not a de Polignac number, because 500939917 - 2³ = 500939909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500909917) 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, 250469958 + 250469959.

It is an arithmetic number, because the mean of its divisors is an integer number (250469959).

Almost surely, 2^500939917 is an apocalyptic number.

It is an amenable number.

500939917 is a deficient number, since it is larger than the sum of its proper divisors (1).

500939917 is an equidigital number, since it uses as much as digits as its factorization.

500939917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76545, while the sum is 43.

The square root of 500939917 is about 22381.6870901190. The cubic root of 500939917 is about 794.1975564140.

The spelling of 500939917 in words is "five hundred million, nine hundred thirty-nine thousand, nine hundred seventeen".