8947481 has 2 divisors, whose sum is σ = 8947482. Its totient is φ = 8947480.

The previous prime is 8947469. The next prime is 8947487. The reversal of 8947481 is 1847498.

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., 8880400 + 67081 = 2980^2 + 259^2 .

It is a cyclic number.

It is not a de Polignac number, because 8947481 - 2⁶ = 8947417 is a prime.

It is a super-2 number, since 2×8947481² = 160114832490722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8947487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4473740 + 4473741.

It is an arithmetic number, because the mean of its divisors is an integer number (4473741).

Almost surely, 2^8947481 is an apocalyptic number.

It is an amenable number.

8947481 is a deficient number, since it is larger than the sum of its proper divisors (1).

8947481 is an equidigital number, since it uses as much as digits as its factorization.

8947481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 41.

The square root of 8947481 is about 2991.2340262841. The cubic root of 8947481 is about 207.6029856033.

The spelling of 8947481 in words is "eight million, nine hundred forty-seven thousand, four hundred eighty-one".