2890289 has 12 divisors (see below), whose sum is σ = 3135084. Its totient is φ = 2663424.

The previous prime is 2890271. The next prime is 2890301. The reversal of 2890289 is 9820982.

It can be written as a sum of positive squares in 6 ways, for example, as 384400 + 2505889 = 620^2 + 1583^2 .

It is not a de Polignac number, because 2890289 - 2²⁰ = 1841713 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2890259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21029 + ... + 21165.

It is an arithmetic number, because the mean of its divisors is an integer number (261257).

2^2890289 is an apocalyptic number.

It is an amenable number.

2890289 is a deficient number, since it is larger than the sum of its proper divisors (244795).

2890289 is a wasteful number, since it uses less digits than its factorization.

2890289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 2890289 is about 1700.0849978751. The cubic root of 2890289 is about 142.4449607901. Note that the first 3 decimals are identical.

The spelling of 2890289 in words is "two million, eight hundred ninety thousand, two hundred eighty-nine".