4853821 has 4 divisors (see below), whose sum is σ = 5547232. Its totient is φ = 4160412.

The previous prime is 4853819. The next prime is 4853837. The reversal of 4853821 is 1283584.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4853821 - 2¹ = 4853819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4853921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346695 + ... + 346708.

It is an arithmetic number, because the mean of its divisors is an integer number (1386808).

Almost surely, 2^4853821 is an apocalyptic number.

It is an amenable number.

4853821 is a deficient number, since it is larger than the sum of its proper divisors (693411).

4853821 is an equidigital number, since it uses as much as digits as its factorization.

4853821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693410.

The product of its digits is 7680, while the sum is 31.

The square root of 4853821 is about 2203.1388971193. The cubic root of 4853821 is about 169.3146688083.

The spelling of 4853821 in words is "four million, eight hundred fifty-three thousand, eight hundred twenty-one".