2748791 has 4 divisors (see below), whose sum is σ = 2756352. Its totient is φ = 2741232.

The previous prime is 2748769. The next prime is 2748803. The reversal of 2748791 is 1978472.

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 2748791 - 2⁶ = 2748727 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 (2748731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3206 + ... + 3971.

It is an arithmetic number, because the mean of its divisors is an integer number (689088).

2^2748791 is an apocalyptic number.

2748791 is a deficient number, since it is larger than the sum of its proper divisors (7561).

2748791 is an equidigital number, since it uses as much as digits as its factorization.

2748791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7560.

The product of its digits is 28224, while the sum is 38.

The square root of 2748791 is about 1657.9478278884. The cubic root of 2748791 is about 140.0814322169.

The spelling of 2748791 in words is "two million, seven hundred forty-eight thousand, seven hundred ninety-one".