2786849 has 4 divisors (see below), whose sum is σ = 3001236. Its totient is φ = 2572464.

The previous prime is 2786843. The next prime is 2786867. The reversal of 2786849 is 9486872.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1918225 + 868624 = 1385^2 + 932^2 .

It is a cyclic number.

It is not a de Polignac number, because 2786849 - 2²⁰ = 1738273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2786843) 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, 107174 + ... + 107199.

It is an arithmetic number, because the mean of its divisors is an integer number (750309).

2^2786849 is an apocalyptic number.

It is an amenable number.

2786849 is a deficient number, since it is larger than the sum of its proper divisors (214387).

2786849 is a wasteful number, since it uses less digits than its factorization.

2786849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214386.

The product of its digits is 193536, while the sum is 44.

The square root of 2786849 is about 1669.3858152027. The cubic root of 2786849 is about 140.7249639192.

The spelling of 2786849 in words is "two million, seven hundred eighty-six thousand, eight hundred forty-nine".