8481689 has 2 divisors, whose sum is σ = 8481690. Its totient is φ = 8481688.

The previous prime is 8481673. The next prime is 8481701. The reversal of 8481689 is 9861848.

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., 4481689 + 4000000 = 2117^2 + 2000^2 .

It is a cyclic number.

It is not a de Polignac number, because 8481689 - 2⁴ = 8481673 is a prime.

It is a Chen prime.

It is equal to p₅₆₉₉₆₉ and since 8481689 and 569969 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (8481289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4240844 + 4240845.

It is an arithmetic number, because the mean of its divisors is an integer number (4240845).

Almost surely, 2^8481689 is an apocalyptic number.

It is an amenable number.

8481689 is a deficient number, since it is larger than the sum of its proper divisors (1).

8481689 is an equidigital number, since it uses as much as digits as its factorization.

8481689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 44.

The square root of 8481689 is about 2912.3339437640. Note that the first 3 decimals coincide. The cubic root of 8481689 is about 203.9361023125.

The spelling of 8481689 in words is "eight million, four hundred eighty-one thousand, six hundred eighty-nine".