848582821 has 2 divisors, whose sum is σ = 848582822. Its totient is φ = 848582820.

The previous prime is 848582803. The next prime is 848582831. The reversal of 848582821 is 128285848.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 848556900 + 25921 = 29130^2 + 161^2 .

It is a cyclic number.

It is not a de Polignac number, because 848582821 - 2⁵ = 848582789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (848582831) 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, 424291410 + 424291411.

It is an arithmetic number, because the mean of its divisors is an integer number (424291411).

Almost surely, 2^848582821 is an apocalyptic number.

It is an amenable number.

848582821 is a deficient number, since it is larger than the sum of its proper divisors (1).

848582821 is an equidigital number, since it uses as much as digits as its factorization.

848582821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 327680, while the sum is 46.

The square root of 848582821 is about 29130.4449159295. Note that the first 3 decimals coincide. The cubic root of 848582821 is about 946.7414938842.

The spelling of 848582821 in words is "eight hundred forty-eight million, five hundred eighty-two thousand, eight hundred twenty-one".