805075999 has 16 divisors (see below), whose sum is σ = 1043015680. Its totient is φ = 603456480.

The previous prime is 805075981. The next prime is 805076003. The reversal of 805075999 is 999570508.

It is a cyclic number.

It is not a de Polignac number, because 805075999 - 2⁷ = 805075871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805070999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231087 + ... + 234544.

It is an arithmetic number, because the mean of its divisors is an integer number (65188480).

Almost surely, 2^805075999 is an apocalyptic number.

805075999 is a deficient number, since it is larger than the sum of its proper divisors (237939681).

805075999 is a wasteful number, since it uses less digits than its factorization.

805075999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465670.

The product of its (nonzero) digits is 1020600, while the sum is 52.

The square root of 805075999 is about 28373.8611930065. The cubic root of 805075999 is about 930.2770204160.

The spelling of 805075999 in words is "eight hundred five million, seventy-five thousand, nine hundred ninety-nine".