32645 has 4 divisors (see below), whose sum is σ = 39180. Its totient is φ = 26112.

The previous prime is 32633. The next prime is 32647. The reversal of 32645 is 54623.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6724 + 25921 = 82^2 + 161^2 .

It is a cyclic number.

It is not a de Polignac number, because 32645 - 2¹² = 28549 is a prime.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3260 + ... + 3269.

It is an arithmetic number, because the mean of its divisors is an integer number (9795).

2³²⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

32645 is a deficient number, since it is larger than the sum of its proper divisors (6535).

32645 is an equidigital number, since it uses as much as digits as its factorization.

32645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6534.

The product of its digits is 720, while the sum is 20.

The square root of 32645 is about 180.6792738529. The cubic root of 32645 is about 31.9599107351.

The spelling of 32645 in words is "thirty-two thousand, six hundred forty-five".