5234821 has 2 divisors, whose sum is σ = 5234822. Its totient is φ = 5234820.

The previous prime is 5234809. The next prime is 5234843. The reversal of 5234821 is 1284325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5225796 + 9025 = 2286^2 + 95^2 .

It is a cyclic number.

It is not a de Polignac number, because 5234821 - 2⁷ = 5234693 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5234321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2617410 + 2617411.

It is an arithmetic number, because the mean of its divisors is an integer number (2617411).

Almost surely, 2^5234821 is an apocalyptic number.

It is an amenable number.

5234821 is a deficient number, since it is larger than the sum of its proper divisors (1).

5234821 is an equidigital number, since it uses as much as digits as its factorization.

5234821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 25.

The square root of 5234821 is about 2287.9731204715. The cubic root of 5234821 is about 173.6336702125.

The spelling of 5234821 in words is "five million, two hundred thirty-four thousand, eight hundred twenty-one".