2047819 has 2 divisors, whose sum is σ = 2047820. Its totient is φ = 2047818.

The previous prime is 2047813. The next prime is 2047841. The reversal of 2047819 is 9187402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2047819 - 2³ = 2047811 is a prime.

It is a super-2 number, since 2×2047819² = 8387125313522, which contains 22 as substring.

It is a Chen prime.

2047819 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2047811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1023909 + 1023910.

It is an arithmetic number, because the mean of its divisors is an integer number (1023910).

2^2047819 is an apocalyptic number.

2047819 is a deficient number, since it is larger than the sum of its proper divisors (1).

2047819 is an equidigital number, since it uses as much as digits as its factorization.

2047819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 2047819 is about 1431.0202654051. The cubic root of 2047819 is about 126.9883429067.

The spelling of 2047819 in words is "two million, forty-seven thousand, eight hundred nineteen".