75338509 has 8 divisors (see below), whose sum is σ = 81468288. Its totient is φ = 69397440.

The previous prime is 75338503. The next prime is 75338533. The reversal of 75338509 is 90583357.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75338509 - 2¹⁷ = 75207437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75338503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46347 + ... + 47944.

It is an arithmetic number, because the mean of its divisors is an integer number (10183536).

Almost surely, 2^75338509 is an apocalyptic number.

It is an amenable number.

75338509 is a deficient number, since it is larger than the sum of its proper divisors (6129779).

75338509 is a wasteful number, since it uses less digits than its factorization.

75338509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94355.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 75338509 is about 8679.7758611614. The cubic root of 75338509 is about 422.3498461559.

The spelling of 75338509 in words is "seventy-five million, three hundred thirty-eight thousand, five hundred nine".