75730009 has 8 divisors (see below), whose sum is σ = 79587200. Its totient is φ = 71968176.

The previous prime is 75730003. The next prime is 75730013. The reversal of 75730009 is 90003757.

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 75730009 - 2⁵ = 75729977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75730003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22209 + ... + 25390.

It is an arithmetic number, because the mean of its divisors is an integer number (9948400).

Almost surely, 2^75730009 is an apocalyptic number.

It is an amenable number.

75730009 is a deficient number, since it is larger than the sum of its proper divisors (3857191).

75730009 is a wasteful number, since it uses less digits than its factorization.

75730009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47679.

The product of its (nonzero) digits is 6615, while the sum is 31.

The square root of 75730009 is about 8702.2990640405. The cubic root of 75730009 is about 423.0801693101.

The spelling of 75730009 in words is "seventy-five million, seven hundred thirty thousand, nine".