8427481 has 2 divisors, whose sum is σ = 8427482. Its totient is φ = 8427480.

The previous prime is 8427467. The next prime is 8427491. The reversal of 8427481 is 1847248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6150400 + 2277081 = 2480^2 + 1509^2 .

It is a cyclic number.

It is not a de Polignac number, because 8427481 - 2⁵ = 8427449 is a prime.

It is a super-2 number, since 2×8427481² = 142044872010722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8427401) 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, 4213740 + 4213741.

It is an arithmetic number, because the mean of its divisors is an integer number (4213741).

Almost surely, 2^8427481 is an apocalyptic number.

It is an amenable number.

8427481 is a deficient number, since it is larger than the sum of its proper divisors (1).

8427481 is an equidigital number, since it uses as much as digits as its factorization.

8427481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14336, while the sum is 34.

The square root of 8427481 is about 2903.0124009380. The cubic root of 8427481 is about 203.5007093287.

The spelling of 8427481 in words is "eight million, four hundred twenty-seven thousand, four hundred eighty-one".