2869789 has 6 divisors (see below), whose sum is σ = 3107706. Its totient is φ = 2648880.

The previous prime is 2869781. The next prime is 2869793. The reversal of 2869789 is 9879682.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 293764 + 2576025 = 542^2 + 1605^2 .

It is not a de Polignac number, because 2869789 - 2³ = 2869781 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 (2869781) 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, 8322 + ... + 8659.

It is an arithmetic number, because the mean of its divisors is an integer number (517951).

2^2869789 is an apocalyptic number.

It is an amenable number.

2869789 is a deficient number, since it is larger than the sum of its proper divisors (237917).

2869789 is a wasteful number, since it uses less digits than its factorization.

2869789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17007 (or 16994 counting only the distinct ones).

The product of its digits is 435456, while the sum is 49.

The square root of 2869789 is about 1694.0451587841. The cubic root of 2869789 is about 142.1073875239.

The spelling of 2869789 in words is "two million, eight hundred sixty-nine thousand, seven hundred eighty-nine".