74544329 has 2 divisors, whose sum is σ = 74544330. Its totient is φ = 74544328.

The previous prime is 74544299. The next prime is 74544331. The reversal of 74544329 is 92344547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59644729 + 14899600 = 7723^2 + 3860^2 .

It is a cyclic number.

It is not a de Polignac number, because 74544329 - 2⁸ = 74544073 is a prime.

It is a Sophie Germain prime.

Together with 74544331, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 74544292 and 74544301.

It is not a weakly prime, because it can be changed into another prime (74544359) 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, 37272164 + 37272165.

It is an arithmetic number, because the mean of its divisors is an integer number (37272165).

Almost surely, 2^74544329 is an apocalyptic number.

It is an amenable number.

74544329 is a deficient number, since it is larger than the sum of its proper divisors (1).

74544329 is an equidigital number, since it uses as much as digits as its factorization.

74544329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 38.

The square root of 74544329 is about 8633.9057789624. The cubic root of 74544329 is about 420.8605353480.

The spelling of 74544329 in words is "seventy-four million, five hundred forty-four thousand, three hundred twenty-nine".