2748215 has 4 divisors (see below), whose sum is σ = 3297864. Its totient is φ = 2198568.

The previous prime is 2748191. The next prime is 2748227. The reversal of 2748215 is 5128472.

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

It is a cyclic number.

It is not a de Polignac number, because 2748215 - 2⁸ = 2747959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274817 + ... + 274826.

It is an arithmetic number, because the mean of its divisors is an integer number (824466).

2^2748215 is an apocalyptic number.

2748215 is a deficient number, since it is larger than the sum of its proper divisors (549649).

2748215 is an equidigital number, since it uses as much as digits as its factorization.

2748215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549648.

The product of its digits is 4480, while the sum is 29.

The square root of 2748215 is about 1657.7741100645. The cubic root of 2748215 is about 140.0716470008.

The spelling of 2748215 in words is "two million, seven hundred forty-eight thousand, two hundred fifteen".