2878847 has 2 divisors, whose sum is σ = 2878848. Its totient is φ = 2878846.

The previous prime is 2878819. The next prime is 2878849. The reversal of 2878847 is 7488782.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2878847 - 2⁶ = 2878783 is a prime.

Together with 2878849, 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 = 2878798 and 2878807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2878849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1439423 + 1439424.

It is an arithmetic number, because the mean of its divisors is an integer number (1439424).

2^2878847 is an apocalyptic number.

2878847 is a deficient number, since it is larger than the sum of its proper divisors (1).

2878847 is an equidigital number, since it uses as much as digits as its factorization.

2878847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 200704, while the sum is 44.

The square root of 2878847 is about 1696.7165349580. The cubic root of 2878847 is about 142.2567430806.

The spelling of 2878847 in words is "two million, eight hundred seventy-eight thousand, eight hundred forty-seven".