2288749 has 2 divisors, whose sum is σ = 2288750. Its totient is φ = 2288748.

The previous prime is 2288747. The next prime is 2288771. The reversal of 2288749 is 9478822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2280100 + 8649 = 1510^2 + 93^2 .

It is a cyclic number.

It is not a de Polignac number, because 2288749 - 2¹ = 2288747 is a prime.

Together with 2288747, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2288747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1144374 + 1144375.

It is an arithmetic number, because the mean of its divisors is an integer number (1144375).

2^2288749 is an apocalyptic number.

It is an amenable number.

2288749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2288749 is an equidigital number, since it uses as much as digits as its factorization.

2288749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 40.

The square root of 2288749 is about 1512.8611965412. The cubic root of 2288749 is about 131.7850227408.

The spelling of 2288749 in words is "two million, two hundred eighty-eight thousand, seven hundred forty-nine".