2684889 has 12 divisors (see below), whose sum is σ = 3896100. Its totient is φ = 1781664.

The previous prime is 2684881. The next prime is 2684893. The reversal of 2684889 is 9884862.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 99225 + 2585664 = 315^2 + 1608^2 .

It is not a de Polignac number, because 2684889 - 2³ = 2684881 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2684881) 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, 1867 + ... + 2975.

It is an arithmetic number, because the mean of its divisors is an integer number (324675).

2^2684889 is an apocalyptic number.

It is an amenable number.

2684889 is a deficient number, since it is larger than the sum of its proper divisors (1211211).

2684889 is a wasteful number, since it uses less digits than its factorization.

2684889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384 (or 1381 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 2684889 is about 1638.5630900274. The cubic root of 2684889 is about 138.9874046176.

The spelling of 2684889 in words is "two million, six hundred eighty-four thousand, eight hundred eighty-nine".