4840621 has 8 divisors (see below), whose sum is σ = 4943160. Its totient is φ = 4739328.

The previous prime is 4840601. The next prime is 4840637. The reversal of 4840621 is 1260484.

It can be written as a sum of positive squares in 4 ways, for example, as 592900 + 4247721 = 770^2 + 2061^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4840621 is a prime.

It is a super-2 number, since 2×4840621² = 46863223331282, which contains 22 as substring.

It is a Duffinian number.

4840621 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4840601) 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, 11995 + ... + 12391.

It is an arithmetic number, because the mean of its divisors is an integer number (617895).

Almost surely, 2^4840621 is an apocalyptic number.

It is an amenable number.

4840621 is a deficient number, since it is larger than the sum of its proper divisors (102539).

4840621 is a wasteful number, since it uses less digits than its factorization.

4840621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 4840621 is about 2200.1411318368. The cubic root of 4840621 is about 169.1610453238.

The spelling of 4840621 in words is "four million, eight hundred forty thousand, six hundred twenty-one".