75389009 has 8 divisors (see below), whose sum is σ = 81380160. Its totient is φ = 69624016.

The previous prime is 75388991. The next prime is 75389029. The reversal of 75389009 is 90098357.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75389009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75389029) 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 7 ways as a sum of consecutive naturals, for example, 55847 + ... + 57180.

It is an arithmetic number, because the mean of its divisors is an integer number (10172520).

Almost surely, 2^75389009 is an apocalyptic number.

It is an amenable number.

75389009 is a deficient number, since it is larger than the sum of its proper divisors (5991151).

75389009 is a wasteful number, since it uses less digits than its factorization.

75389009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113079.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 75389009 is about 8682.6844351272. The cubic root of 75389009 is about 422.4441932289. Note that the first 3 decimals are identical.

The spelling of 75389009 in words is "seventy-five million, three hundred eighty-nine thousand, nine".