9709481 has 2 divisors, whose sum is σ = 9709482. Its totient is φ = 9709480.

The previous prime is 9709477. The next prime is 9709493. The reversal of 9709481 is 1849079.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9709456 + 25 = 3116^2 + 5^2 .

It is an emirp because it is prime and its reverse (1849079) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9709481 - 2² = 9709477 is a prime.

It is a super-2 number, since 2×9709481² = 188548042578722, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (9709411) 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, 4854740 + 4854741.

It is an arithmetic number, because the mean of its divisors is an integer number (4854741).

Almost surely, 2^9709481 is an apocalyptic number.

It is an amenable number.

9709481 is a deficient number, since it is larger than the sum of its proper divisors (1).

9709481 is an equidigital number, since it uses as much as digits as its factorization.

9709481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 9709481 is about 3116.0040115507. The cubic root of 9709481 is about 213.3365849656.

The spelling of 9709481 in words is "nine million, seven hundred nine thousand, four hundred eighty-one".