2748605 has 8 divisors (see below), whose sum is σ = 3313464. Its totient is φ = 2188800.

The previous prime is 2748601. The next prime is 2748617. The reversal of 2748605 is 5068472.

It can be written as a sum of positive squares in 4 ways, for example, as 643204 + 2105401 = 802^2 + 1451^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2748605 - 2² = 2748601 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2748601) 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, 65 + ... + 2345.

It is an arithmetic number, because the mean of its divisors is an integer number (414183).

2^2748605 is an apocalyptic number.

It is an amenable number.

2748605 is a deficient number, since it is larger than the sum of its proper divisors (564859).

2748605 is a wasteful number, since it uses less digits than its factorization.

2748605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 2748605 is about 1657.8917334977. The cubic root of 2748605 is about 140.0782725570.

The spelling of 2748605 in words is "two million, seven hundred forty-eight thousand, six hundred five".