74437243 has 2 divisors, whose sum is σ = 74437244. Its totient is φ = 74437242.

The previous prime is 74437241. The next prime is 74437247. The reversal of 74437243 is 34273447.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74437243 - 2¹ = 74437241 is a prime.

Together with 74437241, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 74437199 and 74437208.

It is not a weakly prime, because it can be changed into another prime (74437241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37218621 + 37218622.

It is an arithmetic number, because the mean of its divisors is an integer number (37218622).

Almost surely, 2^74437243 is an apocalyptic number.

74437243 is a deficient number, since it is larger than the sum of its proper divisors (1).

74437243 is an equidigital number, since it uses as much as digits as its factorization.

74437243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 34.

The square root of 74437243 is about 8627.7020694968. The cubic root of 74437243 is about 420.6589109368.

The spelling of 74437243 in words is "seventy-four million, four hundred thirty-seven thousand, two hundred forty-three".