4743821 has 2 divisors, whose sum is σ = 4743822. Its totient is φ = 4743820.

The previous prime is 4743797. The next prime is 4743839. The reversal of 4743821 is 1283474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3279721 + 1464100 = 1811^2 + 1210^2 .

It is a cyclic number.

It is not a de Polignac number, because 4743821 - 2¹⁸ = 4481677 is a prime.

It is a super-3 number, since 3×4743821³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4743841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2371910 + 2371911.

It is an arithmetic number, because the mean of its divisors is an integer number (2371911).

Almost surely, 2^4743821 is an apocalyptic number.

It is an amenable number.

4743821 is a deficient number, since it is larger than the sum of its proper divisors (1).

4743821 is an equidigital number, since it uses as much as digits as its factorization.

4743821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 29.

The square root of 4743821 is about 2178.0314506453. The cubic root of 4743821 is about 168.0258487249.

The spelling of 4743821 in words is "four million, seven hundred forty-three thousand, eight hundred twenty-one".