499659469 has 2 divisors, whose sum is σ = 499659470. Its totient is φ = 499659468.

The previous prime is 499659463. The next prime is 499659487. The reversal of 499659469 is 964956994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378769444 + 120890025 = 19462^2 + 10995^2 .

It is a cyclic number.

It is not a de Polignac number, because 499659469 - 2²³ = 491270861 is a prime.

It is a super-2 number, since 2×499659469² = 499319169922723922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499659463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249829734 + 249829735.

It is an arithmetic number, because the mean of its divisors is an integer number (249829735).

Almost surely, 2^499659469 is an apocalyptic number.

It is an amenable number.

499659469 is a deficient number, since it is larger than the sum of its proper divisors (1).

499659469 is an equidigital number, since it uses as much as digits as its factorization.

499659469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18895680, while the sum is 61.

The square root of 499659469 is about 22353.0639734243. The cubic root of 499659469 is about 793.5202986400.

The spelling of 499659469 in words is "four hundred ninety-nine million, six hundred fifty-nine thousand, four hundred sixty-nine".