2748009 has 8 divisors (see below), whose sum is σ = 3997152. Its totient is φ = 1665440.

The previous prime is 2747977. The next prime is 2748013. The reversal of 2748009 is 9008472.

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 2748009 - 2⁵ = 2747977 is a prime.

2748009 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2748019) 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, 41604 + ... + 41669.

It is an arithmetic number, because the mean of its divisors is an integer number (499644).

2^2748009 is an apocalyptic number.

It is an amenable number.

2748009 is a deficient number, since it is larger than the sum of its proper divisors (1249143).

2748009 is a wasteful number, since it uses less digits than its factorization.

2748009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83287.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 2748009 is about 1657.7119773953. The cubic root of 2748009 is about 140.0681470951.

The spelling of 2748009 in words is "two million, seven hundred forty-eight thousand, nine".