2749705 has 16 divisors (see below), whose sum is σ = 3798144. Its totient is φ = 1872000.

The previous prime is 2749687. The next prime is 2749709. The reversal of 2749705 is 5079472.

2749705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2749705 - 2⁹ = 2749193 is a prime.

It is an Ulam number.

2749705 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2749709) 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 15 ways as a sum of consecutive naturals, for example, 8629 + ... + 8941.

It is an arithmetic number, because the mean of its divisors is an integer number (237384).

2^2749705 is an apocalyptic number.

It is an amenable number.

2749705 is a deficient number, since it is larger than the sum of its proper divisors (1048439).

2749705 is a wasteful number, since it uses less digits than its factorization.

2749705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 2749705 is about 1658.2234469456. The cubic root of 2749705 is about 140.0969566469.

The spelling of 2749705 in words is "two million, seven hundred forty-nine thousand, seven hundred five".