499457069 has 2 divisors, whose sum is σ = 499457070. Its totient is φ = 499457068.

The previous prime is 499457017. The next prime is 499457131. The reversal of 499457069 is 960754994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 494484169 + 4972900 = 22237^2 + 2230^2 .

It is a cyclic number.

It is not a de Polignac number, because 499457069 - 2¹⁶ = 499391533 is a prime.

It is a super-2 number, since 2×499457069² = 498914727548141522, which contains 22 as substring.

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 499457069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499457369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249728534 + 249728535.

It is an arithmetic number, because the mean of its divisors is an integer number (249728535).

Almost surely, 2^499457069 is an apocalyptic number.

It is an amenable number.

499457069 is a deficient number, since it is larger than the sum of its proper divisors (1).

499457069 is an equidigital number, since it uses as much as digits as its factorization.

499457069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The square root of 499457069 is about 22348.5361713021. The cubic root of 499457069 is about 793.4131388579.

The spelling of 499457069 in words is "four hundred ninety-nine million, four hundred fifty-seven thousand, sixty-nine".