74109943 has 2 divisors, whose sum is σ = 74109944. Its totient is φ = 74109942.

The previous prime is 74109901. The next prime is 74109947. The reversal of 74109943 is 34990147.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74109943 - 2²⁵ = 40555511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74109947) 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, 37054971 + 37054972.

It is an arithmetic number, because the mean of its divisors is an integer number (37054972).

Almost surely, 2^74109943 is an apocalyptic number.

74109943 is a deficient number, since it is larger than the sum of its proper divisors (1).

74109943 is an equidigital number, since it uses as much as digits as its factorization.

74109943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 74109943 is about 8608.7132023317. The cubic root of 74109943 is about 420.0414603818.

The spelling of 74109943 in words is "seventy-four million, one hundred nine thousand, nine hundred forty-three".