801802019 has 2 divisors, whose sum is σ = 801802020. Its totient is φ = 801802018.

The previous prime is 801802013. The next prime is 801802021. The reversal of 801802019 is 910208108.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 801802019 - 2¹² = 801797923 is a prime.

It is a super-2 number, since 2×801802019² = 1285772955344952722, which contains 22 as substring.

Together with 801802021, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 801801982 and 801802000.

It is not a weakly prime, because it can be changed into another prime (801802013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400901009 + 400901010.

It is an arithmetic number, because the mean of its divisors is an integer number (400901010).

Almost surely, 2^801802019 is an apocalyptic number.

801802019 is a deficient number, since it is larger than the sum of its proper divisors (1).

801802019 is an equidigital number, since it uses as much as digits as its factorization.

801802019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 801802019 is about 28316.1088251899. The cubic root of 801802019 is about 929.0142632980.

The spelling of 801802019 in words is "eight hundred one million, eight hundred two thousand, nineteen".