3748243 has 2 divisors, whose sum is σ = 3748244. Its totient is φ = 3748242.

The previous prime is 3748231. The next prime is 3748289. The reversal of 3748243 is 3428473.

It is a happy number.

3748243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (3428473) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3748243 is a prime.

It is an Ulam number.

It is equal to p₂₆₆₅₉₃ and since 3748243 and 266593 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 (3748543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1874121 + 1874122.

It is an arithmetic number, because the mean of its divisors is an integer number (1874122).

Almost surely, 2^3748243 is an apocalyptic number.

3748243 is a deficient number, since it is larger than the sum of its proper divisors (1).

3748243 is an equidigital number, since it uses as much as digits as its factorization.

3748243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 31.

The square root of 3748243 is about 1936.0379645038. The cubic root of 3748243 is about 155.3373574738.

The spelling of 3748243 in words is "three million, seven hundred forty-eight thousand, two hundred forty-three".