2864549 has 4 divisors (see below), whose sum is σ = 2869836. Its totient is φ = 2859264.

The previous prime is 2864539. The next prime is 2864557. The reversal of 2864549 is 9454682.

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 1221025 + 1643524 = 1105^2 + 1282^2 .

It is a cyclic number.

It is not a de Polignac number, because 2864549 - 2⁸ = 2864293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2864539) 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, 1724 + ... + 2949.

It is an arithmetic number, because the mean of its divisors is an integer number (717459).

2^2864549 is an apocalyptic number.

It is an amenable number.

2864549 is a deficient number, since it is larger than the sum of its proper divisors (5287).

2864549 is an equidigital number, since it uses as much as digits as its factorization.

2864549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5286.

The product of its digits is 69120, while the sum is 38.

The square root of 2864549 is about 1692.4978581966. The cubic root of 2864549 is about 142.0208426722.

The spelling of 2864549 in words is "two million, eight hundred sixty-four thousand, five hundred forty-nine".