2785049 has 4 divisors (see below), whose sum is σ = 2797236. Its totient is φ = 2772864.

The previous prime is 2785043. The next prime is 2785051. The reversal of 2785049 is 9405872.

It is a happy number.

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 1607824 + 1177225 = 1268^2 + 1085^2 .

It is a cyclic number.

It is not a de Polignac number, because 2785049 - 2⁴ = 2785033 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 (2785043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5744 + ... + 6209.

It is an arithmetic number, because the mean of its divisors is an integer number (699309).

2^2785049 is an apocalyptic number.

It is an amenable number.

2785049 is a deficient number, since it is larger than the sum of its proper divisors (12187).

2785049 is a wasteful number, since it uses less digits than its factorization.

2785049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12186.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 2785049 is about 1668.8466076905. The cubic root of 2785049 is about 140.6946597429.

The spelling of 2785049 in words is "two million, seven hundred eighty-five thousand, forty-nine".