2243917 has 8 divisors (see below), whose sum is σ = 2441880. Its totient is φ = 2049600.

The previous prime is 2243911. The next prime is 2243959. The reversal of 2243917 is 7193422.

2243917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 224676 + 2019241 = 474^2 + 1421^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2243917 - 2³ = 2243909 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 (2243911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459 + ... + 2167.

It is an arithmetic number, because the mean of its divisors is an integer number (305235).

2^2243917 is an apocalyptic number.

It is an amenable number.

2243917 is a deficient number, since it is larger than the sum of its proper divisors (197963).

2243917 is a wasteful number, since it uses less digits than its factorization.

2243917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823.

The product of its digits is 3024, while the sum is 28.

The square root of 2243917 is about 1497.9709610002. The cubic root of 2243917 is about 130.9188744646.

It can be divided in two parts, 2243 and 917, that added together give a triangular number (3160 = T₇₉).

The spelling of 2243917 in words is "two million, two hundred forty-three thousand, nine hundred seventeen".