8099999 has 2 divisors, whose sum is σ = 8100000. Its totient is φ = 8099998.

The previous prime is 8099983. The next prime is 8100073. The reversal of 8099999 is 9999908.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8099999 - 2⁴ = 8099983 is a prime.

8099999 is a modest number, since divided by 9999 gives 809 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 8099999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8099969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4049999 + 4050000.

It is an arithmetic number, because the mean of its divisors is an integer number (4050000).

Almost surely, 2^8099999 is an apocalyptic number.

8099999 is a deficient number, since it is larger than the sum of its proper divisors (1).

8099999 is an equidigital number, since it uses as much as digits as its factorization.

8099999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 472392, while the sum is 53.

The square root of 8099999 is about 2846.0497184694. The cubic root of 8099999 is about 200.8298767600.

The spelling of 8099999 in words is "eight million, ninety-nine thousand, nine hundred ninety-nine".