801019 has 2 divisors, whose sum is σ = 801020. Its totient is φ = 801018.

The previous prime is 801011. The next prime is 801037. The reversal of 801019 is 910108.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 801019 - 2³ = 801011 is a prime.

It is a super-2 number, since 2×801019² = 1283262876722, which contains 22 as substring.

It is a nialpdrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 800987 and 801005.

It is not a weakly prime, because it can be changed into another prime (801011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400509 + 400510.

It is an arithmetic number, because the mean of its divisors is an integer number (400510).

2⁸⁰¹⁰¹⁹ is an apocalyptic number.

801019 is a deficient number, since it is larger than the sum of its proper divisors (1).

801019 is an equidigital number, since it uses as much as digits as its factorization.

801019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 801019 is about 894.9966480384. The cubic root of 801019 is about 92.8711747744.

The spelling of 801019 in words is "eight hundred one thousand, nineteen".