808019 has 2 divisors, whose sum is σ = 808020. Its totient is φ = 808018.

The previous prime is 807997. The next prime is 808021. The reversal of 808019 is 910808.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-808019 is a prime.

It is a super-2 number, since 2×808019² = 1305789408722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 808021, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (808039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404009 + 404010.

It is an arithmetic number, because the mean of its divisors is an integer number (404010).

2⁸⁰⁸⁰¹⁹ is an apocalyptic number.

808019 is a deficient number, since it is larger than the sum of its proper divisors (1).

808019 is an equidigital number, since it uses as much as digits as its factorization.

808019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 808019 is about 898.8987707189. The cubic root of 808019 is about 93.1409202096.

The spelling of 808019 in words is "eight hundred eight thousand, nineteen".