804848857 has 2 divisors, whose sum is σ = 804848858. Its totient is φ = 804848856.

The previous prime is 804848813. The next prime is 804848881. The reversal of 804848857 is 758848408.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 803382336 + 1466521 = 28344^2 + 1211^2 .

It is a cyclic number.

It is not a de Polignac number, because 804848857 - 2¹⁹ = 804324569 is a prime.

It is a super-2 number, since 2×804848857² = 1295563365228412898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (804888857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402424428 + 402424429.

It is an arithmetic number, because the mean of its divisors is an integer number (402424429).

Almost surely, 2^804848857 is an apocalyptic number.

It is an amenable number.

804848857 is a deficient number, since it is larger than the sum of its proper divisors (1).

804848857 is an equidigital number, since it uses as much as digits as its factorization.

804848857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2293760, while the sum is 52.

The square root of 804848857 is about 28369.8582477953. The cubic root of 804848857 is about 930.1895235591.

The spelling of 804848857 in words is "eight hundred four million, eight hundred forty-eight thousand, eight hundred fifty-seven".