800019 has 12 divisors (see below), whose sum is σ = 1260792. Its totient is φ = 484800.

The previous prime is 800011. The next prime is 800029. The reversal of 800019 is 910008.

It is not a de Polignac number, because 800019 - 2³ = 800011 is a prime.

It is a super-2 number, since 2×800019² = 1280060800722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 799974 and 800010.

It is not an unprimeable number, because it can be changed into a prime (800011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3942 + ... + 4139.

It is an arithmetic number, because the mean of its divisors is an integer number (105066).

2⁸⁰⁰⁰¹⁹ is an apocalyptic number.

800019 is a deficient number, since it is larger than the sum of its proper divisors (460773).

800019 is a wasteful number, since it uses less digits than its factorization.

800019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8098 (or 8095 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 800019 is about 894.4378122597. The cubic root of 800019 is about 92.8325115847.

The spelling of 800019 in words is "eight hundred thousand, nineteen".