32166985 has 8 divisors (see below), whose sum is σ = 38983176. Its totient is φ = 25478400.

The previous prime is 32166971. The next prime is 32166989. The reversal of 32166985 is 58966123.

It can be written as a sum of positive squares in 4 ways, for example, as 3297856 + 28869129 = 1816^2 + 5373^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 32166985 - 2¹⁹ = 31642697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32166989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31344 + ... + 32353.

It is an arithmetic number, because the mean of its divisors is an integer number (4872897).

Almost surely, 2^32166985 is an apocalyptic number.

It is an amenable number.

32166985 is a deficient number, since it is larger than the sum of its proper divisors (6816191).

32166985 is a wasteful number, since it uses less digits than its factorization.

32166985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63803.

The product of its digits is 77760, while the sum is 40.

The square root of 32166985 is about 5671.5945729574. The cubic root of 32166985 is about 318.0314862749.

It can be divided in two parts, 3216 and 6985, that added together give a palindrome (10201).

The spelling of 32166985 in words is "thirty-two million, one hundred sixty-six thousand, nine hundred eighty-five".