75329399 has 2 divisors, whose sum is σ = 75329400. Its totient is φ = 75329398.

The previous prime is 75329339. The next prime is 75329413. The reversal of 75329399 is 99392357.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75329399 - 2⁸ = 75329143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75329339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37664699 + 37664700.

It is an arithmetic number, because the mean of its divisors is an integer number (37664700).

Almost surely, 2^75329399 is an apocalyptic number.

75329399 is a deficient number, since it is larger than the sum of its proper divisors (1).

75329399 is an equidigital number, since it uses as much as digits as its factorization.

75329399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 459270, while the sum is 47.

The square root of 75329399 is about 8679.2510621597. The cubic root of 75329399 is about 422.3328218291.

The spelling of 75329399 in words is "seventy-five million, three hundred twenty-nine thousand, three hundred ninety-nine".