800000099 has 16 divisors (see below), whose sum is σ = 843340800. Its totient is φ = 757421280.

The previous prime is 800000087. The next prime is 800000107. The reversal of 800000099 is 990000008.

It is a happy number.

It is not a de Polignac number, because 800000099 - 2⁴ = 800000083 is a prime.

It is a Duffinian number.

800000099 is a modest number, since divided by 99 gives 8 as remainder.

It is not an unprimeable number, because it can be changed into a prime (800000029) 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, 1267514 + ... + 1268144.

It is an arithmetic number, because the mean of its divisors is an integer number (52708800).

Almost surely, 2^800000099 is an apocalyptic number.

800000099 is a deficient number, since it is larger than the sum of its proper divisors (43340701).

800000099 is a wasteful number, since it uses less digits than its factorization.

800000099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 800000099 is about 28284.2729975511. The cubic root of 800000099 is about 928.3178050157.

The spelling of 800000099 in words is "eight hundred million, ninety-nine", and thus it is an aban number.