75388349 has 2 divisors, whose sum is σ = 75388350. Its totient is φ = 75388348.

The previous prime is 75388337. The next prime is 75388363. The reversal of 75388349 is 94388357.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53392249 + 21996100 = 7307^2 + 4690^2 .

It is a cyclic number.

It is not a de Polignac number, because 75388349 - 2¹⁶ = 75322813 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75388399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37694174 + 37694175.

It is an arithmetic number, because the mean of its divisors is an integer number (37694175).

Almost surely, 2^75388349 is an apocalyptic number.

It is an amenable number.

75388349 is a deficient number, since it is larger than the sum of its proper divisors (1).

75388349 is an equidigital number, since it uses as much as digits as its factorization.

75388349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 47.

The square root of 75388349 is about 8682.6464283650. The cubic root of 75388349 is about 422.4429604498.

The spelling of 75388349 in words is "seventy-five million, three hundred eighty-eight thousand, three hundred forty-nine".