32006641 has 4 divisors (see below), whose sum is σ = 32140800. Its totient is φ = 31872484.

The previous prime is 32006629. The next prime is 32006669. The reversal of 32006641 is 14660023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32006641 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (32006141) 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 3 ways as a sum of consecutive naturals, for example, 66721 + ... + 67198.

It is an arithmetic number, because the mean of its divisors is an integer number (8035200).

Almost surely, 2^32006641 is an apocalyptic number.

It is an amenable number.

32006641 is a deficient number, since it is larger than the sum of its proper divisors (134159).

32006641 is a wasteful number, since it uses less digits than its factorization.

32006641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134158.

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

The square root of 32006641 is about 5657.4412060577. The cubic root of 32006641 is about 317.5021712295.

Adding to 32006641 its reverse (14660023), we get a palindrome (46666664).

The spelling of 32006641 in words is "thirty-two million, six thousand, six hundred forty-one".