9699749 has 2 divisors, whose sum is σ = 9699750. Its totient is φ = 9699748.

The previous prime is 9699733. The next prime is 9699763. The reversal of 9699749 is 9479969.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7896100 + 1803649 = 2810^2 + 1343^2 .

It is an emirp because it is prime and its reverse (9479969) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9699749 - 2⁴ = 9699733 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 9⁴ + 6⁵ + 9⁵ + 9⁶ + 7⁶ + 4¹¹ + 9⁷ .

It is a self number, because there is not a number n which added to its sum of digits gives 9699749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9699769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4849874 + 4849875.

It is an arithmetic number, because the mean of its divisors is an integer number (4849875).

Almost surely, 2^9699749 is an apocalyptic number.

It is an amenable number.

9699749 is a deficient number, since it is larger than the sum of its proper divisors (1).

9699749 is an equidigital number, since it uses as much as digits as its factorization.

9699749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1102248, while the sum is 53.

The square root of 9699749 is about 3114.4420045973. The cubic root of 9699749 is about 213.2652840142.

The spelling of 9699749 in words is "nine million, six hundred ninety-nine thousand, seven hundred forty-nine".