2427749 has 6 divisors (see below), whose sum is σ = 2465190. Its totient is φ = 2390856.

The previous prime is 2427731. The next prime is 2427751. The reversal of 2427749 is 9477242.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1803649 + 624100 = 1343^2 + 790^2 .

It is not a de Polignac number, because 2427749 - 2⁸ = 2427493 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 (2427769) 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, 6047 + ... + 6435.

It is an arithmetic number, because the mean of its divisors is an integer number (410865).

2^2427749 is an apocalyptic number.

It is an amenable number.

2427749 is a deficient number, since it is larger than the sum of its proper divisors (37441).

2427749 is an frugal number, since it uses more digits than its factorization.

2427749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 468 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 2427749 is about 1558.1235509420. The cubic root of 2427749 is about 134.4006166414.

The spelling of 2427749 in words is "two million, four hundred twenty-seven thousand, seven hundred forty-nine".