2748717 has 6 divisors (see below), whose sum is σ = 3970382. Its totient is φ = 1832472.

The previous prime is 2748703. The next prime is 2748719. The reversal of 2748717 is 7178472.

It can be written as a sum of positive squares in only one way, i.e., 1726596 + 1022121 = 1314^2 + 1011^2 .

It is not a de Polignac number, because 2748717 - 2⁷ = 2748589 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 (2748719) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152698 + ... + 152715.

2^2748717 is an apocalyptic number.

It is an amenable number.

2748717 is a deficient number, since it is larger than the sum of its proper divisors (1221665).

2748717 is a wasteful number, since it uses less digits than its factorization.

2748717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305419 (or 305416 counting only the distinct ones).

The product of its digits is 21952, while the sum is 36.

The square root of 2748717 is about 1657.9255109926. The cubic root of 2748717 is about 140.0801751650.

The spelling of 2748717 in words is "two million, seven hundred forty-eight thousand, seven hundred seventeen".