83321330 has 8 divisors (see below), whose sum is σ = 149978412. Its totient is φ = 33328528.

The previous prime is 83321309. The next prime is 83321333. The reversal of 83321330 is 3312338.

It can be written as a sum of positive squares in 2 ways, for example, as 82319329 + 1002001 = 9073^2 + 1001^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 83321296 and 83321305.

It is not an unprimeable number, because it can be changed into a prime (83321333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4166057 + ... + 4166076.

Almost surely, 2^83321330 is an apocalyptic number.

83321330 is a deficient number, since it is larger than the sum of its proper divisors (66657082).

83321330 is a wasteful number, since it uses less digits than its factorization.

83321330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8332140.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 83321330 is about 9128.0518184331. The cubic root of 83321330 is about 436.7692596061.

Adding to 83321330 its reverse (3312338), we get a palindrome (86633668).

The spelling of 83321330 in words is "eighty-three million, three hundred twenty-one thousand, three hundred thirty".