73980321 has 8 divisors (see below), whose sum is σ = 99246240. Its totient is φ = 49017312.

The previous prime is 73980301. The next prime is 73980323. The reversal of 73980321 is 12308937.

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

It is not a de Polignac number, because 73980321 - 2⁵ = 73980289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73980323) 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, 75156 + ... + 76133.

It is an arithmetic number, because the mean of its divisors is an integer number (12405780).

Almost surely, 2^73980321 is an apocalyptic number.

It is an amenable number.

73980321 is a deficient number, since it is larger than the sum of its proper divisors (25265919).

73980321 is a wasteful number, since it uses less digits than its factorization.

73980321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151455.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 73980321 is about 8601.1813723465. The cubic root of 73980321 is about 419.7964262872.

The spelling of 73980321 in words is "seventy-three million, nine hundred eighty thousand, three hundred twenty-one".