32207213 has 2 divisors, whose sum is σ = 32207214. Its totient is φ = 32207212.

The previous prime is 32207177. The next prime is 32207239. The reversal of 32207213 is 31270223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31393609 + 813604 = 5603^2 + 902^2 .

It is an emirp because it is prime and its reverse (31270223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32207213 - 2¹⁰ = 32206189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32207113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16103606 + 16103607.

It is an arithmetic number, because the mean of its divisors is an integer number (16103607).

Almost surely, 2^32207213 is an apocalyptic number.

It is an amenable number.

32207213 is a deficient number, since it is larger than the sum of its proper divisors (1).

32207213 is an equidigital number, since it uses as much as digits as its factorization.

32207213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 32207213 is about 5675.1399101696. The cubic root of 32207213 is about 318.1640076685.

Adding to 32207213 its reverse (31270223), we get a palindrome (63477436).

The spelling of 32207213 in words is "thirty-two million, two hundred seven thousand, two hundred thirteen".