2448821 has 2 divisors, whose sum is σ = 2448822. Its totient is φ = 2448820.

The previous prime is 2448791. The next prime is 2448827. The reversal of 2448821 is 1288442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2436721 + 12100 = 1561^2 + 110^2 .

It is a cyclic number.

It is not a de Polignac number, because 2448821 - 2⁶ = 2448757 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2448827) 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, 1224410 + 1224411.

It is an arithmetic number, because the mean of its divisors is an integer number (1224411).

2^2448821 is an apocalyptic number.

It is an amenable number.

2448821 is a deficient number, since it is larger than the sum of its proper divisors (1).

2448821 is an equidigital number, since it uses as much as digits as its factorization.

2448821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4096, while the sum is 29.

The square root of 2448821 is about 1564.8709211945. The cubic root of 2448821 is about 134.7883468986.

The spelling of 2448821 in words is "two million, four hundred forty-eight thousand, eight hundred twenty-one".