75975321 has 8 divisors (see below), whose sum is σ = 101478304. Its totient is φ = 50561280.

The previous prime is 75975313. The next prime is 75975323. The reversal of 75975321 is 12357957.

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

It is not a de Polignac number, because 75975321 - 2³ = 75975313 is a prime.

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 75975321.

It is not an unprimeable number, because it can be changed into a prime (75975323) 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, 20215 + ... + 23676.

It is an arithmetic number, because the mean of its divisors is an integer number (12684788).

Almost surely, 2^75975321 is an apocalyptic number.

It is an amenable number.

75975321 is a deficient number, since it is larger than the sum of its proper divisors (25502983).

75975321 is a wasteful number, since it uses less digits than its factorization.

75975321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44471.

The product of its digits is 66150, while the sum is 39.

The square root of 75975321 is about 8716.3823344321. The cubic root of 75975321 is about 423.5365043872.

The spelling of 75975321 in words is "seventy-five million, nine hundred seventy-five thousand, three hundred twenty-one".