73282321 has 8 divisors (see below), whose sum is σ = 83825280. Its totient is φ = 62757888.

The previous prime is 73282273. The next prime is 73282331. The reversal of 73282321 is 12328237.

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 73282321 - 2⁹ = 73281809 is a prime.

It is a super-2 number, since 2×73282321² = 10740597142294082, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 73282321.

It is not an unprimeable number, because it can be changed into a prime (73282331) 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, 5265 + ... + 13201.

It is an arithmetic number, because the mean of its divisors is an integer number (10478160).

Almost surely, 2^73282321 is an apocalyptic number.

It is an amenable number.

73282321 is a deficient number, since it is larger than the sum of its proper divisors (10542959).

73282321 is a wasteful number, since it uses less digits than its factorization.

73282321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9263.

The product of its digits is 4032, while the sum is 28.

The square root of 73282321 is about 8560.5093890492. The cubic root of 73282321 is about 418.4720006466.

The spelling of 73282321 in words is "seventy-three million, two hundred eighty-two thousand, three hundred twenty-one".