6632661 has 16 divisors (see below), whose sum is σ = 10188288. Its totient is φ = 3759600.

The previous prime is 6632651. The next prime is 6632683. The reversal of 6632661 is 1662366.

6632661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6632661 - 2⁹ = 6632149 is a prime.

It is an Ulam number.

6632661 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6632651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1546 + ... + 3956.

It is an arithmetic number, because the mean of its divisors is an integer number (636768).

Almost surely, 2^6632661 is an apocalyptic number.

It is an amenable number.

6632661 is a deficient number, since it is larger than the sum of its proper divisors (3555627).

6632661 is a wasteful number, since it uses less digits than its factorization.

6632661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552.

The product of its digits is 7776, while the sum is 30.

The square root of 6632661 is about 2575.3953094622. The cubic root of 6632661 is about 187.8866545537.

The spelling of 6632661 in words is "six million, six hundred thirty-two thousand, six hundred sixty-one".