2749237 has 2 divisors, whose sum is σ = 2749238. Its totient is φ = 2749236.

The previous prime is 2749231. The next prime is 2749247. The reversal of 2749237 is 7329472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2099601 + 649636 = 1449^2 + 806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2749237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2749231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1374618 + 1374619.

It is an arithmetic number, because the mean of its divisors is an integer number (1374619).

2^2749237 is an apocalyptic number.

It is an amenable number.

2749237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2749237 is an equidigital number, since it uses as much as digits as its factorization.

2749237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 34.

The square root of 2749237 is about 1658.0823260622. The cubic root of 2749237 is about 140.0890080251.

The spelling of 2749237 in words is "two million, seven hundred forty-nine thousand, two hundred thirty-seven".