4881621 has 8 divisors (see below), whose sum is σ = 6519744. Its totient is φ = 3248960.

The previous prime is 4881587. The next prime is 4881623. The reversal of 4881621 is 1261884.

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 4881621 - 2⁹ = 4881109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4881623) 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, 1720 + ... + 3566.

It is an arithmetic number, because the mean of its divisors is an integer number (814968).

Almost surely, 2^4881621 is an apocalyptic number.

It is an amenable number.

4881621 is a deficient number, since it is larger than the sum of its proper divisors (1638123).

4881621 is a wasteful number, since it uses less digits than its factorization.

4881621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731.

The product of its digits is 3072, while the sum is 30.

The square root of 4881621 is about 2209.4390690852. The cubic root of 4881621 is about 169.6373005393.

The spelling of 4881621 in words is "four million, eight hundred eighty-one thousand, six hundred twenty-one".