75327321 has 8 divisors (see below), whose sum is σ = 100957600. Its totient is φ = 49957632.

The previous prime is 75327319. The next prime is 75327331. The reversal of 75327321 is 12372357.

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

It is not a de Polignac number, because 75327321 - 2¹ = 75327319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75327311) 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, 64471 + ... + 65628.

It is an arithmetic number, because the mean of its divisors is an integer number (12619700).

Almost surely, 2^75327321 is an apocalyptic number.

It is an amenable number.

75327321 is a deficient number, since it is larger than the sum of its proper divisors (25630279).

75327321 is a wasteful number, since it uses less digits than its factorization.

75327321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130295.

The product of its digits is 8820, while the sum is 30.

The square root of 75327321 is about 8679.1313505442. The cubic root of 75327321 is about 422.3289383711.

Adding to 75327321 its reverse (12372357), we get a palindrome (87699678).

The spelling of 75327321 in words is "seventy-five million, three hundred twenty-seven thousand, three hundred twenty-one".