499886657 has 2 divisors, whose sum is σ = 499886658. Its totient is φ = 499886656.

The previous prime is 499886633. The next prime is 499886743. The reversal of 499886657 is 756688994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 376321201 + 123565456 = 19399^2 + 11116^2 .

It is a cyclic number.

It is not a de Polignac number, because 499886657 - 2⁶ = 499886593 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 499886657.

It is not a weakly prime, because it can be changed into another prime (499886617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249943328 + 249943329.

It is an arithmetic number, because the mean of its divisors is an integer number (249943329).

Almost surely, 2^499886657 is an apocalyptic number.

It is an amenable number.

499886657 is a deficient number, since it is larger than the sum of its proper divisors (1).

499886657 is an equidigital number, since it uses as much as digits as its factorization.

499886657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26127360, while the sum is 62.

The square root of 499886657 is about 22358.1452048241. The cubic root of 499886657 is about 793.6405478527.

The spelling of 499886657 in words is "four hundred ninety-nine million, eight hundred eighty-six thousand, six hundred fifty-seven".