74328329 has 4 divisors (see below), whose sum is σ = 74356884. Its totient is φ = 74299776.

The previous prime is 74328311. The next prime is 74328389. The reversal of 74328329 is 92382347.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92382347 = 67 ⋅1378841.

It can be written as a sum of positive squares in 2 ways, for example, as 14807104 + 59521225 = 3848^2 + 7715^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74328329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74328292 and 74328301.

It is not an unprimeable number, because it can be changed into a prime (74328389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9932 + ... + 15725.

It is an arithmetic number, because the mean of its divisors is an integer number (18589221).

Almost surely, 2^74328329 is an apocalyptic number.

It is an amenable number.

74328329 is a deficient number, since it is larger than the sum of its proper divisors (28555).

74328329 is a wasteful number, since it uses less digits than its factorization.

74328329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28554.

The product of its digits is 72576, while the sum is 38.

The square root of 74328329 is about 8621.3878813101. The cubic root of 74328329 is about 420.4536462680.

The spelling of 74328329 in words is "seventy-four million, three hundred twenty-eight thousand, three hundred twenty-nine".