32004661 has 16 divisors (see below), whose sum is σ = 37215360. Its totient is φ = 27276480.

The previous prime is 32004653. The next prime is 32004671. The reversal of 32004661 is 16640023.

It is a cyclic number.

It is not a de Polignac number, because 32004661 - 2³ = 32004653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32004671) 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 15 ways as a sum of consecutive naturals, for example, 6826 + ... + 10516.

It is an arithmetic number, because the mean of its divisors is an integer number (2325960).

Almost surely, 2^32004661 is an apocalyptic number.

It is an amenable number.

32004661 is a deficient number, since it is larger than the sum of its proper divisors (5210699).

32004661 is a wasteful number, since it uses less digits than its factorization.

32004661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3756.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 32004661 is about 5657.2662125801. The cubic root of 32004661 is about 317.4956239709.

Adding to 32004661 its reverse (16640023), we get a palindrome (48644684).

The spelling of 32004661 in words is "thirty-two million, four thousand, six hundred sixty-one".