2243887 has 2 divisors, whose sum is σ = 2243888. Its totient is φ = 2243886.

The previous prime is 2243851. The next prime is 2243893. The reversal of 2243887 is 7883422.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2243887 is a prime.

2243887 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2243287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121943 + 1121944.

It is an arithmetic number, because the mean of its divisors is an integer number (1121944).

2^2243887 is an apocalyptic number.

2243887 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243887 is an equidigital number, since it uses as much as digits as its factorization.

2243887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 34.

The square root of 2243887 is about 1497.9609474215. The cubic root of 2243887 is about 130.9182910230.

The spelling of 2243887 in words is "two million, two hundred forty-three thousand, eight hundred eighty-seven".