2798689 has 4 divisors (see below), whose sum is σ = 2808000. Its totient is φ = 2789380.

The previous prime is 2798687. The next prime is 2798707. The reversal of 2798689 is 9868972.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 2798689 - 2¹ = 2798687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2798687) 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, 4189 + ... + 4810.

It is an arithmetic number, because the mean of its divisors is an integer number (702000).

2^2798689 is an apocalyptic number.

It is an amenable number.

2798689 is a deficient number, since it is larger than the sum of its proper divisors (9311).

2798689 is an equidigital number, since it uses as much as digits as its factorization.

2798689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9310.

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

The square root of 2798689 is about 1672.9282710266. The cubic root of 2798689 is about 140.9239735676.

The spelling of 2798689 in words is "two million, seven hundred ninety-eight thousand, six hundred eighty-nine".