2748733 has 4 divisors (see below), whose sum is σ = 2960188. Its totient is φ = 2537280.

The previous prime is 2748731. The next prime is 2748769. The reversal of 2748733 is 3378472.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 182329 + 2566404 = 427^2 + 1602^2 .

It is a cyclic number.

It is not a de Polignac number, because 2748733 - 2¹ = 2748731 is a prime.

It is a Duffinian number.

2748733 is a lucky number.

It is a congruent 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105708 + ... + 105733.

It is an arithmetic number, because the mean of its divisors is an integer number (740047).

2^2748733 is an apocalyptic number.

It is an amenable number.

2748733 is a deficient number, since it is larger than the sum of its proper divisors (211455).

2748733 is a wasteful number, since it uses less digits than its factorization.

2748733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211454.

The product of its digits is 28224, while the sum is 34.

The square root of 2748733 is about 1657.9303362928. The cubic root of 2748733 is about 140.0804469619.

It can be divided in two parts, 2748 and 733, that added together give a square (3481 = 59²).

The spelling of 2748733 in words is "two million, seven hundred forty-eight thousand, seven hundred thirty-three".