2749109 has 8 divisors (see below), whose sum is σ = 3011040. Its totient is φ = 2489200.

The previous prime is 2749093. The next prime is 2749127. The reversal of 2749109 is 9019472.

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 2749109 - 2⁴ = 2749093 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2749309) 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 7 ways as a sum of consecutive naturals, for example, 5147 + ... + 5655.

It is an arithmetic number, because the mean of its divisors is an integer number (376380).

2^2749109 is an apocalyptic number.

It is an amenable number.

2749109 is a deficient number, since it is larger than the sum of its proper divisors (261931).

2749109 is a wasteful number, since it uses less digits than its factorization.

2749109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 2749109 is about 1658.0437268058. The cubic root of 2749109 is about 140.0868338859.

The spelling of 2749109 in words is "two million, seven hundred forty-nine thousand, one hundred nine".