4813421 has 2 divisors, whose sum is σ = 4813422. Its totient is φ = 4813420.

The previous prime is 4813399. The next prime is 4813423. The reversal of 4813421 is 1243184.

4813421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3200521 + 1612900 = 1789^2 + 1270^2 .

It is a cyclic number.

It is not a de Polignac number, because 4813421 - 2²² = 619117 is a prime.

Together with 4813423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4813423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2406710 + 2406711.

It is an arithmetic number, because the mean of its divisors is an integer number (2406711).

Almost surely, 2^4813421 is an apocalyptic number.

It is an amenable number.

4813421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4813421 is an equidigital number, since it uses as much as digits as its factorization.

4813421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 23.

The square root of 4813421 is about 2193.9510021876. The cubic root of 4813421 is about 168.8436049497.

The spelling of 4813421 in words is "four million, eight hundred thirteen thousand, four hundred twenty-one".