2889647 has 4 divisors (see below), whose sum is σ = 2989320. Its totient is φ = 2789976.

The previous prime is 2889641. The next prime is 2889683. The reversal of 2889647 is 7469882.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2889647 - 2¹² = 2885551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2889598 and 2889607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2889641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49793 + ... + 49850.

It is an arithmetic number, because the mean of its divisors is an integer number (747330).

2^2889647 is an apocalyptic number.

2889647 is a deficient number, since it is larger than the sum of its proper divisors (99673).

2889647 is an equidigital number, since it uses as much as digits as its factorization.

2889647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99672.

The product of its digits is 193536, while the sum is 44.

The square root of 2889647 is about 1699.8961733000. The cubic root of 2889647 is about 142.4344132363.

The spelling of 2889647 in words is "two million, eight hundred eighty-nine thousand, six hundred forty-seven".