2789447 has 6 divisors (see below), whose sum is σ = 2944368. Its totient is φ = 2642292.

The previous prime is 2789441. The next prime is 2789459. The reversal of 2789447 is 7449872.

It is not a de Polignac number, because 2789447 - 2¹² = 2785351 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 (2789441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3503 + ... + 4224.

It is an arithmetic number, because the mean of its divisors is an integer number (490728).

2^2789447 is an apocalyptic number.

2789447 is a deficient number, since it is larger than the sum of its proper divisors (154921).

2789447 is an equidigital number, since it uses as much as digits as its factorization.

2789447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7765 (or 7746 counting only the distinct ones).

The product of its digits is 112896, while the sum is 41.

The square root of 2789447 is about 1670.1637644255. The cubic root of 2789447 is about 140.7686799471.

The spelling of 2789447 in words is "two million, seven hundred eighty-nine thousand, four hundred forty-seven".