7457243 has 2 divisors, whose sum is σ = 7457244. Its totient is φ = 7457242.

The previous prime is 7457231. The next prime is 7457257. The reversal of 7457243 is 3427547.

7457243 is digitally balanced in base 3, 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 (3427547) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7457243 - 2⁶ = 7457179 is a prime.

It is a super-2 number, since 2×7457243² = 111220946322098, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7457273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3728621 + 3728622.

It is an arithmetic number, because the mean of its divisors is an integer number (3728622).

Almost surely, 2^7457243 is an apocalyptic number.

7457243 is a deficient number, since it is larger than the sum of its proper divisors (1).

7457243 is an equidigital number, since it uses as much as digits as its factorization.

7457243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 32.

The square root of 7457243 is about 2730.7953054010. The cubic root of 7457243 is about 195.3706996222.

The spelling of 7457243 in words is "seven million, four hundred fifty-seven thousand, two hundred forty-three".