32424221 has 2 divisors, whose sum is σ = 32424222. Its totient is φ = 32424220.

The previous prime is 32424211. The next prime is 32424229. The reversal of 32424221 is 12242423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31483321 + 940900 = 5611^2 + 970^2 .

It is an emirp because it is prime and its reverse (12242423) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32424221 - 2¹⁰ = 32423197 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 32424193 and 32424202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32424229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16212110 + 16212111.

It is an arithmetic number, because the mean of its divisors is an integer number (16212111).

Almost surely, 2^32424221 is an apocalyptic number.

It is an amenable number.

32424221 is a deficient number, since it is larger than the sum of its proper divisors (1).

32424221 is an equidigital number, since it uses as much as digits as its factorization.

32424221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 20.

The square root of 32424221 is about 5694.2269888019. The cubic root of 32424221 is about 318.8769912552.

Adding to 32424221 its reverse (12242423), we get a palindrome (44666644).

It can be divided in two parts, 3242422 and 1, that added together give a palindrome (3242423).

The spelling of 32424221 in words is "thirty-two million, four hundred twenty-four thousand, two hundred twenty-one".