2243747 has 4 divisors (see below), whose sum is σ = 2447736. Its totient is φ = 2039760.

The previous prime is 2243743. The next prime is 2243753. The reversal of 2243747 is 7473422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2243747 - 2² = 2243743 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 2²¹ + 4³ + 3⁸ + 7⁴ + 4⁶ + 7⁴ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2243741) 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, 101978 + ... + 101999.

It is an arithmetic number, because the mean of its divisors is an integer number (611934).

2^2243747 is an apocalyptic number.

2243747 is a deficient number, since it is larger than the sum of its proper divisors (203989).

2243747 is a wasteful number, since it uses less digits than its factorization.

2243747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203988.

The product of its digits is 9408, while the sum is 29.

The square root of 2243747 is about 1497.9142165024. The cubic root of 2243747 is about 130.9155682267.

The spelling of 2243747 in words is "two million, two hundred forty-three thousand, seven hundred forty-seven".