810413999 has 2 divisors, whose sum is σ = 810414000. Its totient is φ = 810413998.

The previous prime is 810413969. The next prime is 810414023. The reversal of 810413999 is 999314018.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-810413999 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (810413959) 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, 405206999 + 405207000.

It is an arithmetic number, because the mean of its divisors is an integer number (405207000).

Almost surely, 2^810413999 is an apocalyptic number.

810413999 is a deficient number, since it is larger than the sum of its proper divisors (1).

810413999 is an equidigital number, since it uses as much as digits as its factorization.

810413999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 810413999 is about 28467.7712334492. The cubic root of 810413999 is about 932.3285384590.

The spelling of 810413999 in words is "eight hundred ten million, four hundred thirteen thousand, nine hundred ninety-nine".