4668621 has 8 divisors (see below), whose sum is σ = 6252480. Its totient is φ = 3098592.

The previous prime is 4668589. The next prime is 4668637. The reversal of 4668621 is 1268664.

It is a happy number.

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

It is not a de Polignac number, because 4668621 - 2⁵ = 4668589 is a prime.

It is a Curzon number.

4668621 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4668641) 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 7 ways as a sum of consecutive naturals, for example, 2641 + ... + 4038.

It is an arithmetic number, because the mean of its divisors is an integer number (781560).

Almost surely, 2^4668621 is an apocalyptic number.

It is an amenable number.

4668621 is a deficient number, since it is larger than the sum of its proper divisors (1583859).

4668621 is a wasteful number, since it uses less digits than its factorization.

4668621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6915.

The product of its digits is 13824, while the sum is 33.

The square root of 4668621 is about 2160.6991923912. The cubic root of 4668621 is about 167.1332556604.

The spelling of 4668621 in words is "four million, six hundred sixty-eight thousand, six hundred twenty-one".