4835821 has 2 divisors, whose sum is σ = 4835822. Its totient is φ = 4835820.

The previous prime is 4835807. The next prime is 4835833. The reversal of 4835821 is 1285384.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4791721 + 44100 = 2189^2 + 210^2 .

It is a cyclic number.

It is not a de Polignac number, because 4835821 - 2⁷ = 4835693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4835801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2417910 + 2417911.

It is an arithmetic number, because the mean of its divisors is an integer number (2417911).

Almost surely, 2^4835821 is an apocalyptic number.

It is an amenable number.

4835821 is a deficient number, since it is larger than the sum of its proper divisors (1).

4835821 is an equidigital number, since it uses as much as digits as its factorization.

4835821 is an odious number, because the sum of its binary digits is odd.

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

The square root of 4835821 is about 2199.0500221687. The cubic root of 4835821 is about 169.1051129994.

The spelling of 4835821 in words is "four million, eight hundred thirty-five thousand, eight hundred twenty-one".