9889741 has 2 divisors, whose sum is σ = 9889742. Its totient is φ = 9889740.

The previous prime is 9889723. The next prime is 9889753. The reversal of 9889741 is 1479889.

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., 7236100 + 2653641 = 2690^2 + 1629^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9889741 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 9889691 and 9889700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9889541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4944870 + 4944871.

It is an arithmetic number, because the mean of its divisors is an integer number (4944871).

Almost surely, 2^9889741 is an apocalyptic number.

It is an amenable number.

9889741 is a deficient number, since it is larger than the sum of its proper divisors (1).

9889741 is an equidigital number, since it uses as much as digits as its factorization.

9889741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 46.

The square root of 9889741 is about 3144.7958598294. The cubic root of 9889741 is about 214.6487214894.

The spelling of 9889741 in words is "nine million, eight hundred eighty-nine thousand, seven hundred forty-one".