32216365 has 12 divisors (see below), whose sum is σ = 39635892. Its totient is φ = 25137920.

The previous prime is 32216363. The next prime is 32216389. The reversal of 32216365 is 56361223.

32216365 = 4013² + 4014².

It can be written as a sum of positive squares in 6 ways, for example, as 16112196 + 16104169 = 4014^2 + 4013^2 .

It is not a de Polignac number, because 32216365 - 2¹ = 32216363 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32216363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6489 + ... + 10321.

It is an arithmetic number, because the mean of its divisors is an integer number (3302991).

Almost surely, 2^32216365 is an apocalyptic number.

32216365 is the 4014-th centered square number.

It is an amenable number.

32216365 is a deficient number, since it is larger than the sum of its proper divisors (7419527).

32216365 is an equidigital number, since it uses as much as digits as its factorization.

32216365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3920 (or 3879 counting only the distinct ones).

The product of its digits is 6480, while the sum is 28.

The square root of 32216365 is about 5675.9461766299. The cubic root of 32216365 is about 318.1941413038.

Adding to 32216365 its reverse (56361223), we get a palindrome (88577588).

The spelling of 32216365 in words is "thirty-two million, two hundred sixteen thousand, three hundred sixty-five".