800081003 has 2 divisors, whose sum is σ = 800081004. Its totient is φ = 800081002.

The previous prime is 800080999. The next prime is 800081021. The reversal of 800081003 is 300180008.

800081003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 800081003 - 2² = 800080999 is a prime.

It is a super-2 number, since 2×800081003² = 1280259222722972018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (800081033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400040501 + 400040502.

It is an arithmetic number, because the mean of its divisors is an integer number (400040502).

Almost surely, 2^800081003 is an apocalyptic number.

800081003 is a deficient number, since it is larger than the sum of its proper divisors (1).

800081003 is an equidigital number, since it uses as much as digits as its factorization.

800081003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 800081003 is about 28285.7031554812. The cubic root of 800081003 is about 928.3490975501.

The spelling of 800081003 in words is "eight hundred million, eighty-one thousand, three".