2684289 has 4 divisors (see below), whose sum is σ = 3579056. Its totient is φ = 1789524.

The previous prime is 2684287. The next prime is 2684293. The reversal of 2684289 is 9824862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2684289 - 2¹ = 2684287 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 6³ + 8³ + 4⁵ + 2¹⁹ + 8⁷ + 9⁵ .

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

2684289 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2684287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447379 + ... + 447384.

It is an arithmetic number, because the mean of its divisors is an integer number (894764).

2^2684289 is an apocalyptic number.

It is an amenable number.

2684289 is a deficient number, since it is larger than the sum of its proper divisors (894767).

2684289 is an equidigital number, since it uses as much as digits as its factorization.

2684289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894766.

The product of its digits is 55296, while the sum is 39.

The square root of 2684289 is about 1638.3799925536. The cubic root of 2684289 is about 138.9770505389.

The spelling of 2684289 in words is "two million, six hundred eighty-four thousand, two hundred eighty-nine".