74503243 has 2 divisors, whose sum is σ = 74503244. Its totient is φ = 74503242.

The previous prime is 74503229. The next prime is 74503259. The reversal of 74503243 is 34230547.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74503243 - 2⁹ = 74502731 is a prime.

It is not a weakly prime, because it can be changed into another prime (74503283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37251621 + 37251622.

It is an arithmetic number, because the mean of its divisors is an integer number (37251622).

Almost surely, 2^74503243 is an apocalyptic number.

74503243 is a deficient number, since it is larger than the sum of its proper divisors (1).

74503243 is an equidigital number, since it uses as much as digits as its factorization.

74503243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 74503243 is about 8631.5261107176. The cubic root of 74503243 is about 420.7832003629.

The spelling of 74503243 in words is "seventy-four million, five hundred three thousand, two hundred forty-three".