2389243 has 2 divisors, whose sum is σ = 2389244. Its totient is φ = 2389242.

The previous prime is 2389241. The next prime is 2389249. The reversal of 2389243 is 3429832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2389243 - 2¹ = 2389241 is a prime.

It is a super-2 number, since 2×2389243² = 11416964226098, which contains 22 as substring.

Together with 2389241, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 2¹⁰ + 3⁵ + 8² + 9⁶ + 2¹⁸ + 4 + 3¹³ .

It is not a weakly prime, because it can be changed into another prime (2389241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1194621 + 1194622.

It is an arithmetic number, because the mean of its divisors is an integer number (1194622).

2^2389243 is an apocalyptic number.

2389243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2389243 is an equidigital number, since it uses as much as digits as its factorization.

2389243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The square root of 2389243 is about 1545.7176326872. The cubic root of 2389243 is about 133.6862601347.

The spelling of 2389243 in words is "two million, three hundred eighty-nine thousand, two hundred forty-three".