499578323 has 2 divisors, whose sum is σ = 499578324. Its totient is φ = 499578322.

The previous prime is 499578293. The next prime is 499578413. The reversal of 499578323 is 323875994.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 499578323 - 2⁶ = 499578259 is a prime.

It is a super-2 number, since 2×499578323² = 499157001622984658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (499578523) 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, 249789161 + 249789162.

It is an arithmetic number, because the mean of its divisors is an integer number (249789162).

Almost surely, 2^499578323 is an apocalyptic number.

499578323 is a deficient number, since it is larger than the sum of its proper divisors (1).

499578323 is an equidigital number, since it uses as much as digits as its factorization.

499578323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 50.

The square root of 499578323 is about 22351.2488018008. The cubic root of 499578323 is about 793.4773397262.

The spelling of 499578323 in words is "four hundred ninety-nine million, five hundred seventy-eight thousand, three hundred twenty-three".