9885749 has 2 divisors, whose sum is σ = 9885750. Its totient is φ = 9885748.

The previous prime is 9885737. The next prime is 9885761. The reversal of 9885749 is 9475889.

9885749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (9885737) and next prime (9885761).

It can be written as a sum of positive squares in only one way, i.e., 7739524 + 2146225 = 2782^2 + 1465^2 .

It is a cyclic number.

It is not a de Polignac number, because 9885749 - 2⁸ = 9885493 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 9885697 and 9885706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9885049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4942874 + 4942875.

It is an arithmetic number, because the mean of its divisors is an integer number (4942875).

Almost surely, 2^9885749 is an apocalyptic number.

It is an amenable number.

9885749 is a deficient number, since it is larger than the sum of its proper divisors (1).

9885749 is an equidigital number, since it uses as much as digits as its factorization.

9885749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 50.

The square root of 9885749 is about 3144.1610963817. The cubic root of 9885749 is about 214.6198365734.

The spelling of 9885749 in words is "nine million, eight hundred eighty-five thousand, seven hundred forty-nine".