2748447 has 24 divisors (see below), whose sum is σ = 4331600. Its totient is φ = 1679184.

The previous prime is 2748443. The next prime is 2748457. The reversal of 2748447 is 7448472.

It is not a de Polignac number, because 2748447 - 2² = 2748443 is a prime.

2748447 is a lucky number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2748443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19704 + ... + 19842.

2^2748447 is an apocalyptic number.

2748447 is a deficient number, since it is larger than the sum of its proper divisors (1583153).

2748447 is a wasteful number, since it uses less digits than its factorization.

2748447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 155 counting only the distinct ones).

The product of its digits is 50176, while the sum is 36.

The square root of 2748447 is about 1657.8440819329. The cubic root of 2748447 is about 140.0755884328.

The spelling of 2748447 in words is "two million, seven hundred forty-eight thousand, four hundred forty-seven".