848520781 has 2 divisors, whose sum is σ = 848520782. Its totient is φ = 848520780.

The previous prime is 848520769. The next prime is 848520823. The reversal of 848520781 is 187025848.

848520781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 845064900 + 3455881 = 29070^2 + 1859^2 .

It is a cyclic number.

It is not a de Polignac number, because 848520781 - 2¹⁹ = 847996493 is a prime.

It is a super-2 number, since 2×848520781² = 1439975031577699922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (848520181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424260390 + 424260391.

It is an arithmetic number, because the mean of its divisors is an integer number (424260391).

Almost surely, 2^848520781 is an apocalyptic number.

It is an amenable number.

848520781 is a deficient number, since it is larger than the sum of its proper divisors (1).

848520781 is an equidigital number, since it uses as much as digits as its factorization.

848520781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 143360, while the sum is 43.

The square root of 848520781 is about 29129.3800311644. The cubic root of 848520781 is about 946.7184211908.

The spelling of 848520781 in words is "eight hundred forty-eight million, five hundred twenty thousand, seven hundred eighty-one".