32216917 has 2 divisors, whose sum is σ = 32216918. Its totient is φ = 32216916.

The previous prime is 32216903. The next prime is 32216953. The reversal of 32216917 is 71961223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25462116 + 6754801 = 5046^2 + 2599^2 .

It is an emirp because it is prime and its reverse (71961223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32216917 - 2¹⁹ = 31692629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32216117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16108458 + 16108459.

It is an arithmetic number, because the mean of its divisors is an integer number (16108459).

Almost surely, 2^32216917 is an apocalyptic number.

It is an amenable number.

32216917 is a deficient number, since it is larger than the sum of its proper divisors (1).

32216917 is an equidigital number, since it uses as much as digits as its factorization.

32216917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 31.

The square root of 32216917 is about 5675.9948026756. The cubic root of 32216917 is about 318.1959586220.

It can be divided in two parts, 32216 and 917, that added together give a palindrome (33133).

The spelling of 32216917 in words is "thirty-two million, two hundred sixteen thousand, nine hundred seventeen".