74399329 has 2 divisors, whose sum is σ = 74399330. Its totient is φ = 74399328.

The previous prime is 74399323. The next prime is 74399371. The reversal of 74399329 is 92399347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43296400 + 31102929 = 6580^2 + 5577^2 .

It is a cyclic number.

It is not a de Polignac number, because 74399329 - 2¹⁵ = 74366561 is a prime.

It is not a weakly prime, because it can be changed into another prime (74399323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37199664 + 37199665.

It is an arithmetic number, because the mean of its divisors is an integer number (37199665).

Almost surely, 2^74399329 is an apocalyptic number.

It is an amenable number.

74399329 is a deficient number, since it is larger than the sum of its proper divisors (1).

74399329 is an equidigital number, since it uses as much as digits as its factorization.

74399329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 46.

The square root of 74399329 is about 8625.5045649515. The cubic root of 74399329 is about 420.5874790842.

The spelling of 74399329 in words is "seventy-four million, three hundred ninety-nine thousand, three hundred twenty-nine".