74564329 has 12 divisors (see below), whose sum is σ = 91841364. Its totient is φ = 60152064.

The previous prime is 74564309. The next prime is 74564339. The reversal of 74564329 is 92346547.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 43204329 + 31360000 = 6573^2 + 5600^2 .

It is not a de Polignac number, because 74564329 - 2⁵ = 74564297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74564291 and 74564300.

It is not an unprimeable number, because it can be changed into a prime (74564309) 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 in 11 ways as a sum of consecutive naturals, for example, 43924 + ... + 45589.

It is an arithmetic number, because the mean of its divisors is an integer number (7653447).

Almost surely, 2^74564329 is an apocalyptic number.

It is an amenable number.

74564329 is a deficient number, since it is larger than the sum of its proper divisors (17277035).

74564329 is a wasteful number, since it uses less digits than its factorization.

74564329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89544 (or 89537 counting only the distinct ones).

The product of its digits is 181440, while the sum is 40.

The square root of 74564329 is about 8635.0639256464. The cubic root of 74564329 is about 420.8981704848.

The spelling of 74564329 in words is "seventy-four million, five hundred sixty-four thousand, three hundred twenty-nine".