75328919 has 8 divisors (see below), whose sum is σ = 77069520. Its totient is φ = 73607616.

The previous prime is 75328909. The next prime is 75328927. The reversal of 75328919 is 91982357.

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-75328919 is a prime.

It is a super-2 number, since 2×75328919² = 11348892075417122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75328919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75328909) 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 in 7 ways as a sum of consecutive naturals, for example, 3224 + ... + 12690.

It is an arithmetic number, because the mean of its divisors is an integer number (9633690).

Almost surely, 2^75328919 is an apocalyptic number.

75328919 is a deficient number, since it is larger than the sum of its proper divisors (1740601).

75328919 is a wasteful number, since it uses less digits than its factorization.

75328919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9649.

The product of its digits is 136080, while the sum is 44.

The square root of 75328919 is about 8679.2234099601. The cubic root of 75328919 is about 422.3319247903.

The spelling of 75328919 in words is "seventy-five million, three hundred twenty-eight thousand, nine hundred nineteen".