2078243 has 2 divisors, whose sum is σ = 2078244. Its totient is φ = 2078242.

The previous prime is 2078221. The next prime is 2078287. The reversal of 2078243 is 3428702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2078243 - 2⁸ = 2077987 is a prime.

It is not a weakly prime, because it can be changed into another prime (2078443) 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, 1039121 + 1039122.

It is an arithmetic number, because the mean of its divisors is an integer number (1039122).

2^2078243 is an apocalyptic number.

2078243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2078243 is an equidigital number, since it uses as much as digits as its factorization.

2078243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 2078243 is about 1441.6112513434. The cubic root of 2078243 is about 127.6141333519.

The spelling of 2078243 in words is "two million, seventy-eight thousand, two hundred forty-three".