2866749 has 8 divisors (see below), whose sum is σ = 3833472. Its totient is φ = 1905600.

The previous prime is 2866741. The next prime is 2866753. The reversal of 2866749 is 9476682.

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

It is not a de Polignac number, because 2866749 - 2³ = 2866741 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2866749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2866741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12 + ... + 2394.

It is an arithmetic number, because the mean of its divisors is an integer number (479184).

2^2866749 is an apocalyptic number.

It is an amenable number.

2866749 is a deficient number, since it is larger than the sum of its proper divisors (966723).

2866749 is a wasteful number, since it uses less digits than its factorization.

2866749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787.

The product of its digits is 145152, while the sum is 42.

The square root of 2866749 is about 1693.1476604242. The cubic root of 2866749 is about 142.0571911400.

The spelling of 2866749 in words is "two million, eight hundred sixty-six thousand, seven hundred forty-nine".