4803821 has 18 divisors (see below), whose sum is σ = 5613930. Its totient is φ = 4102560.

The previous prime is 4803797. The next prime is 4803857. The reversal of 4803821 is 1283084.

It can be written as a sum of positive squares in 3 ways, for example, as 2758921 + 2044900 = 1661^2 + 1430^2 .

It is not a de Polignac number, because 4803821 - 2²² = 609517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4803871) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 129815 + ... + 129851.

It is an arithmetic number, because the mean of its divisors is an integer number (311885).

Almost surely, 2^4803821 is an apocalyptic number.

It is an amenable number.

4803821 is a deficient number, since it is larger than the sum of its proper divisors (810109).

4803821 is a wasteful number, since it uses less digits than its factorization.

4803821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 4803821 is about 2191.7620765037. The cubic root of 4803821 is about 168.7312816915.

The spelling of 4803821 in words is "four million, eight hundred three thousand, eight hundred twenty-one".