75319989 has 8 divisors (see below), whose sum is σ = 103889760. Its totient is φ = 48481776.

The previous prime is 75319973. The next prime is 75320023. The reversal of 75319989 is 98991357.

It is a happy number.

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

It is not a de Polignac number, because 75319989 - 2⁴ = 75319973 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75319919) 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, 432787 + ... + 432960.

It is an arithmetic number, because the mean of its divisors is an integer number (12986220).

Almost surely, 2^75319989 is an apocalyptic number.

It is an amenable number.

75319989 is a deficient number, since it is larger than the sum of its proper divisors (28569771).

75319989 is a wasteful number, since it uses less digits than its factorization.

75319989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865779.

The product of its digits is 612360, while the sum is 51.

The square root of 75319989 is about 8678.7089477641. The cubic root of 75319989 is about 422.3152354357.

The spelling of 75319989 in words is "seventy-five million, three hundred nineteen thousand, nine hundred eighty-nine".