32420321 has 4 divisors (see below), whose sum is σ = 32458752. Its totient is φ = 32381892.

The previous prime is 32420291. The next prime is 32420329. The reversal of 32420321 is 12302423.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 32420321 - 2¹⁰ = 32419297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32420321.

It is not an unprimeable number, because it can be changed into a prime (32420329) 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, 17921 + ... + 19646.

It is an arithmetic number, because the mean of its divisors is an integer number (8114688).

Almost surely, 2^32420321 is an apocalyptic number.

It is an amenable number.

32420321 is a deficient number, since it is larger than the sum of its proper divisors (38431).

32420321 is an equidigital number, since it uses as much as digits as its factorization.

32420321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38430.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 32420321 is about 5693.8845264020. The cubic root of 32420321 is about 318.8642058529.

Adding to 32420321 its reverse (12302423), we get a palindrome (44722744).

The spelling of 32420321 in words is "thirty-two million, four hundred twenty thousand, three hundred twenty-one".