9690749 has 2 divisors, whose sum is σ = 9690750. Its totient is φ = 9690748.

The previous prime is 9690743. The next prime is 9690773. The reversal of 9690749 is 9470969.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8352100 + 1338649 = 2890^2 + 1157^2 .

It is an emirp because it is prime and its reverse (9470969) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9690749 - 2²⁰ = 8642173 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9690743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4845374 + 4845375.

It is an arithmetic number, because the mean of its divisors is an integer number (4845375).

Almost surely, 2^9690749 is an apocalyptic number.

It is an amenable number.

9690749 is a deficient number, since it is larger than the sum of its proper divisors (1).

9690749 is an equidigital number, since it uses as much as digits as its factorization.

9690749 is an evil number, because the sum of its binary digits is even.

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

The square root of 9690749 is about 3112.9967876630. The cubic root of 9690749 is about 213.1993035610.

The spelling of 9690749 in words is "nine million, six hundred ninety thousand, seven hundred forty-nine".