9785641 has 2 divisors, whose sum is σ = 9785642. Its totient is φ = 9785640.

The previous prime is 9785621. The next prime is 9785663. The reversal of 9785641 is 1465879.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6270016 + 3515625 = 2504^2 + 1875^2 .

It is a cyclic number.

It is not a de Polignac number, because 9785641 - 2⁹ = 9785129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9785594 and 9785603.

It is not a weakly prime, because it can be changed into another prime (9785621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4892820 + 4892821.

It is an arithmetic number, because the mean of its divisors is an integer number (4892821).

Almost surely, 2^9785641 is an apocalyptic number.

It is an amenable number.

9785641 is a deficient number, since it is larger than the sum of its proper divisors (1).

9785641 is an equidigital number, since it uses as much as digits as its factorization.

9785641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 40.

The square root of 9785641 is about 3128.2009206571. The cubic root of 9785641 is about 213.8929283571.

The spelling of 9785641 in words is "nine million, seven hundred eighty-five thousand, six hundred forty-one".