2889947 has 2 divisors, whose sum is σ = 2889948. Its totient is φ = 2889946.

The previous prime is 2889923. The next prime is 2889979. The reversal of 2889947 is 7499882.

2889947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2889947 - 2⁶ = 2889883 is a prime.

It is not a weakly prime, because it can be changed into another prime (2889247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1444973 + 1444974.

It is an arithmetic number, because the mean of its divisors is an integer number (1444974).

2^2889947 is an apocalyptic number.

2889947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2889947 is an equidigital number, since it uses as much as digits as its factorization.

2889947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 47.

The square root of 2889947 is about 1699.9844116932. The cubic root of 2889947 is about 142.4393421942.

The spelling of 2889947 in words is "two million, eight hundred eighty-nine thousand, nine hundred forty-seven".