9487081 has 2 divisors, whose sum is σ = 9487082. Its totient is φ = 9487080.

The previous prime is 9487073. The next prime is 9487087. The reversal of 9487081 is 1807849.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9357481 + 129600 = 3059^2 + 360^2 .

It is a cyclic number.

It is not a de Polignac number, because 9487081 - 2³ = 9487073 is a prime.

It is a super-2 number, since 2×9487081² = 180009411801122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9487081.

It is not a weakly prime, because it can be changed into another prime (9487087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4743540 + 4743541.

It is an arithmetic number, because the mean of its divisors is an integer number (4743541).

Almost surely, 2^9487081 is an apocalyptic number.

It is an amenable number.

9487081 is a deficient number, since it is larger than the sum of its proper divisors (1).

9487081 is an equidigital number, since it uses as much as digits as its factorization.

9487081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 9487081 is about 3080.1105499641. The cubic root of 9487081 is about 211.6951310912.

The spelling of 9487081 in words is "nine million, four hundred eighty-seven thousand, eighty-one".