74285243 has 2 divisors, whose sum is σ = 74285244. Its totient is φ = 74285242.

The previous prime is 74285227. The next prime is 74285273. The reversal of 74285243 is 34258247.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74285243 - 2⁴ = 74285227 is a prime.

It is not a weakly prime, because it can be changed into another prime (74285203) 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, 37142621 + 37142622.

It is an arithmetic number, because the mean of its divisors is an integer number (37142622).

Almost surely, 2^74285243 is an apocalyptic number.

74285243 is a deficient number, since it is larger than the sum of its proper divisors (1).

74285243 is an equidigital number, since it uses as much as digits as its factorization.

74285243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 35.

The square root of 74285243 is about 8618.8887334737. Note that the first 3 decimals coincide. The cubic root of 74285243 is about 420.3723889262.

The spelling of 74285243 in words is "seventy-four million, two hundred eighty-five thousand, two hundred forty-three".