3958243 has 2 divisors, whose sum is σ = 3958244. Its totient is φ = 3958242.

The previous prime is 3958219. The next prime is 3958259. The reversal of 3958243 is 3428593.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3958243 - 2⁵ = 3958211 is a prime.

3958243 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3958199 and 3958208.

It is not a weakly prime, because it can be changed into another prime (3958343) 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, 1979121 + 1979122.

It is an arithmetic number, because the mean of its divisors is an integer number (1979122).

Almost surely, 2^3958243 is an apocalyptic number.

3958243 is a deficient number, since it is larger than the sum of its proper divisors (1).

3958243 is an equidigital number, since it uses as much as digits as its factorization.

3958243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 3958243 is about 1989.5333623742. The cubic root of 3958243 is about 158.1857959601.

The spelling of 3958243 in words is "three million, nine hundred fifty-eight thousand, two hundred forty-three".