499969369 has 2 divisors, whose sum is σ = 499969370. Its totient is φ = 499969368.

The previous prime is 499969321. The next prime is 499969381. The reversal of 499969369 is 963969994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 468159769 + 31809600 = 21637^2 + 5640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499969369 is a prime.

It is a super-2 number, since 2×499969369² = 499938739876516322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 499969369.

It is not a weakly prime, because it can be changed into another prime (499969399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249984684 + 249984685.

It is an arithmetic number, because the mean of its divisors is an integer number (249984685).

Almost surely, 2^499969369 is an apocalyptic number.

It is an amenable number.

499969369 is a deficient number, since it is larger than the sum of its proper divisors (1).

499969369 is an equidigital number, since it uses as much as digits as its factorization.

499969369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25509168, while the sum is 64.

The square root of 499969369 is about 22359.9948345253. The cubic root of 499969369 is about 793.6843177592.

The spelling of 499969369 in words is "four hundred ninety-nine million, nine hundred sixty-nine thousand, three hundred sixty-nine".