2855749 has 8 divisors (see below), whose sum is σ = 3209472. Its totient is φ = 2521200.

The previous prime is 2855747. The next prime is 2855761. The reversal of 2855749 is 9475582.

2855749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2855749 - 2¹ = 2855747 is a prime.

It is a Duffinian number.

2855749 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2855747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4477 + ... + 5074.

It is an arithmetic number, because the mean of its divisors is an integer number (401184).

2^2855749 is an apocalyptic number.

It is an amenable number.

2855749 is a deficient number, since it is larger than the sum of its proper divisors (353723).

2855749 is a wasteful number, since it uses less digits than its factorization.

2855749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9587.

The product of its digits is 100800, while the sum is 40.

The square root of 2855749 is about 1689.8961506554. The cubic root of 2855749 is about 141.8752624084.

The spelling of 2855749 in words is "two million, eight hundred fifty-five thousand, seven hundred forty-nine".