2748739 has 16 divisors (see below), whose sum is σ = 3317760. Its totient is φ = 2227680.

The previous prime is 2748731. The next prime is 2748769. The reversal of 2748739 is 9378472.

2748739 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 2748739 - 2³ = 2748731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2748731) 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, 11382 + ... + 11620.

It is an arithmetic number, because the mean of its divisors is an integer number (207360).

2^2748739 is an apocalyptic number.

2748739 is a deficient number, since it is larger than the sum of its proper divisors (569021).

2748739 is a wasteful number, since it uses less digits than its factorization.

2748739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330.

The product of its digits is 84672, while the sum is 40.

The square root of 2748739 is about 1657.9321457768. The cubic root of 2748739 is about 140.0805488855.

The spelling of 2748739 in words is "two million, seven hundred forty-eight thousand, seven hundred thirty-nine".