9609749 has 2 divisors, whose sum is σ = 9609750. Its totient is φ = 9609748.

The previous prime is 9609713. The next prime is 9609773. The reversal of 9609749 is 9479069.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8439025 + 1170724 = 2905^2 + 1082^2 .

It is a cyclic number.

It is not a de Polignac number, because 9609749 - 2⁸ = 9609493 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9609799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4804874 + 4804875.

It is an arithmetic number, because the mean of its divisors is an integer number (4804875).

Almost surely, 2^9609749 is an apocalyptic number.

It is an amenable number.

9609749 is a deficient number, since it is larger than the sum of its proper divisors (1).

9609749 is an equidigital number, since it uses as much as digits as its factorization.

9609749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 9609749 is about 3099.9595158647. The cubic root of 9609749 is about 212.6036329579.

The spelling of 9609749 in words is "nine million, six hundred nine thousand, seven hundred forty-nine".