2243737 has 4 divisors (see below), whose sum is σ = 2247376. Its totient is φ = 2240100.

The previous prime is 2243723. The next prime is 2243741. The reversal of 2243737 is 7373422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2243737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2243777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639 + ... + 2212.

It is an arithmetic number, because the mean of its divisors is an integer number (561844).

2^2243737 is an apocalyptic number.

It is an amenable number.

2243737 is a deficient number, since it is larger than the sum of its proper divisors (3639).

2243737 is an equidigital number, since it uses as much as digits as its factorization.

2243737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3638.

The product of its digits is 7056, while the sum is 28.

The square root of 2243737 is about 1497.9108785238. The cubic root of 2243737 is about 130.9153737369.

The spelling of 2243737 in words is "two million, two hundred forty-three thousand, seven hundred thirty-seven".