2104689 has 8 divisors (see below), whose sum is σ = 2819232. Its totient is φ = 1396640.

The previous prime is 2104679. The next prime is 2104699. The reversal of 2104689 is 9864012.

It is an interprime number because it is at equal distance from previous prime (2104679) and next prime (2104699).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2104689 - 2⁴ = 2104673 is a prime.

2104689 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2104679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 807 + ... + 2204.

It is an arithmetic number, because the mean of its divisors is an integer number (352404).

2^2104689 is an apocalyptic number.

It is an amenable number.

2104689 is a deficient number, since it is larger than the sum of its proper divisors (714543).

2104689 is a wasteful number, since it uses less digits than its factorization.

2104689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3247.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 2104689 is about 1450.7546312178. The cubic root of 2104689 is about 128.1531573253.

The spelling of 2104689 in words is "two million, one hundred four thousand, six hundred eighty-nine".