32320321 has 8 divisors (see below), whose sum is σ = 36396288. Its totient is φ = 28434000.

The previous prime is 32320319. The next prime is 32320361. The reversal of 32320321 is 12302323.

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 32320321 - 2¹ = 32320319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32320295 and 32320304.

It is not an unprimeable number, because it can be changed into a prime (32320361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47050 + ... + 47731.

It is an arithmetic number, because the mean of its divisors is an integer number (4549536).

Almost surely, 2^32320321 is an apocalyptic number.

32320321 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

32320321 is a deficient number, since it is larger than the sum of its proper divisors (4075967).

32320321 is a wasteful number, since it uses less digits than its factorization.

32320321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94823.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 32320321 is about 5685.0963932021. The cubic root of 32320321 is about 318.5360242238.

Adding to 32320321 its reverse (12302323), we get a palindrome (44622644).

The spelling of 32320321 in words is "thirty-two million, three hundred twenty thousand, three hundred twenty-one".