2820019 has 2 divisors, whose sum is σ = 2820020. Its totient is φ = 2820018.

The previous prime is 2820017. The next prime is 2820031. The reversal of 2820019 is 9100282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2820019 - 2¹ = 2820017 is a prime.

It is a super-2 number, since 2×2820019² = 15905014320722, which contains 22 as substring.

Together with 2820017, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2820017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1410009 + 1410010.

It is an arithmetic number, because the mean of its divisors is an integer number (1410010).

2^2820019 is an apocalyptic number.

2820019 is a deficient number, since it is larger than the sum of its proper divisors (1).

2820019 is an equidigital number, since it uses as much as digits as its factorization.

2820019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 2820019 is about 1679.2912195328. The cubic root of 2820019 is about 141.2810817339.

The spelling of 2820019 in words is "two million, eight hundred twenty thousand, nineteen".