2889668 has 6 divisors (see below), whose sum is σ = 5056926. Its totient is φ = 1444832.

The previous prime is 2889641. The next prime is 2889683. The reversal of 2889668 is 8669882.

It can be written as a sum of positive squares in only one way, i.e., 2815684 + 73984 = 1678^2 + 272^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361205 + ... + 361212.

It is an arithmetic number, because the mean of its divisors is an integer number (842821).

2^2889668 is an apocalyptic number.

It is an amenable number.

2889668 is a deficient number, since it is larger than the sum of its proper divisors (2167258).

2889668 is a wasteful number, since it uses less digits than its factorization.

2889668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722421 (or 722419 counting only the distinct ones).

The product of its digits is 331776, while the sum is 47.

The square root of 2889668 is about 1699.9023501366. The cubic root of 2889668 is about 142.4347582744.

The spelling of 2889668 in words is "two million, eight hundred eighty-nine thousand, six hundred sixty-eight".