848090989 has 2 divisors, whose sum is σ = 848090990. Its totient is φ = 848090988.

The previous prime is 848090899. The next prime is 848091007. The reversal of 848090989 is 989090848.

Together with previous prime (848090899) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 765462889 + 82628100 = 27667^2 + 9090^2 .

It is a cyclic number.

It is not a de Polignac number, because 848090989 - 2⁷ = 848090861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (848090189) 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, 424045494 + 424045495.

It is an arithmetic number, because the mean of its divisors is an integer number (424045495).

Almost surely, 2^848090989 is an apocalyptic number.

It is an amenable number.

848090989 is a deficient number, since it is larger than the sum of its proper divisors (1).

848090989 is an equidigital number, since it uses as much as digits as its factorization.

848090989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 55.

The square root of 848090989 is about 29122.0018027607. The cubic root of 848090989 is about 946.5585505344.

The spelling of 848090989 in words is "eight hundred forty-eight million, ninety thousand, nine hundred eighty-nine".