2749881 has 8 divisors (see below), whose sum is σ = 3721504. Its totient is φ = 1805760.

The previous prime is 2749849. The next prime is 2749883. The reversal of 2749881 is 1889472.

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

It is not a de Polignac number, because 2749881 - 2⁵ = 2749849 is a prime.

It is a super-2 number, since 2×2749881² = 15123691028322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2749883) 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, 6640 + ... + 7041.

It is an arithmetic number, because the mean of its divisors is an integer number (465188).

2^2749881 is an apocalyptic number.

It is an amenable number.

2749881 is a deficient number, since it is larger than the sum of its proper divisors (971623).

2749881 is a wasteful number, since it uses less digits than its factorization.

2749881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13751.

The product of its digits is 32256, while the sum is 39.

The square root of 2749881 is about 1658.2765149395. The cubic root of 2749881 is about 140.0999456389.

The spelling of 2749881 in words is "two million, seven hundred forty-nine thousand, eight hundred eighty-one".