6632021 has 8 divisors (see below), whose sum is σ = 7277088. Its totient is φ = 5994000.

The previous prime is 6632009. The next prime is 6632051. The reversal of 6632021 is 1202366.

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

It is a cyclic number.

It is not a de Polignac number, because 6632021 - 2²² = 2437717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6631984 and 6632002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6632051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326 + ... + 3656.

It is an arithmetic number, because the mean of its divisors is an integer number (909636).

Almost surely, 2^6632021 is an apocalyptic number.

It is an amenable number.

6632021 is a deficient number, since it is larger than the sum of its proper divisors (645067).

6632021 is a wasteful number, since it uses less digits than its factorization.

6632021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3523.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 6632021 is about 2575.2710536951. The cubic root of 6632021 is about 187.8806111609.

Adding to 6632021 its reverse (1202366), we get a palindrome (7834387).

The spelling of 6632021 in words is "six million, six hundred thirty-two thousand, twenty-one".