2243393 has 2 divisors, whose sum is σ = 2243394. Its totient is φ = 2243392.

The previous prime is 2243383. The next prime is 2243399. The reversal of 2243393 is 3933422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2096704 + 146689 = 1448^2 + 383^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243393 - 2¹⁰ = 2242369 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p₁₆₅₆₂₆ and since 2243393 and 165626 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2243399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121696 + 1121697.

It is an arithmetic number, because the mean of its divisors is an integer number (1121697).

2^2243393 is an apocalyptic number.

It is an amenable number.

2243393 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243393 is an equidigital number, since it uses as much as digits as its factorization.

2243393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 26.

The square root of 2243393 is about 1497.7960475312. The cubic root of 2243393 is about 130.9086829363.

The spelling of 2243393 in words is "two million, two hundred forty-three thousand, three hundred ninety-three".