7243871 has 2 divisors, whose sum is σ = 7243872. Its totient is φ = 7243870.

The previous prime is 7243867. The next prime is 7243877. The reversal of 7243871 is 1783427.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1783427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7243871 - 2² = 7243867 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7243877) 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, 3621935 + 3621936.

It is an arithmetic number, because the mean of its divisors is an integer number (3621936).

Almost surely, 2^7243871 is an apocalyptic number.

7243871 is a deficient number, since it is larger than the sum of its proper divisors (1).

7243871 is an equidigital number, since it uses as much as digits as its factorization.

7243871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9408, while the sum is 32.

The square root of 7243871 is about 2691.4440362006. Note that the first 3 decimals coincide. The cubic root of 7243871 is about 193.4892773383.

The spelling of 7243871 in words is "seven million, two hundred forty-three thousand, eight hundred seventy-one".