9936749 has 4 divisors (see below), whose sum is σ = 9943164. Its totient is φ = 9930336.

The previous prime is 9936739. The next prime is 9936779. The reversal of 9936749 is 9476399.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4761124 + 5175625 = 2182^2 + 2275^2 .

It is a cyclic number.

It is not a de Polignac number, because 9936749 - 2⁴ = 9936733 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9936739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719 + ... + 4515.

It is an arithmetic number, because the mean of its divisors is an integer number (2485791).

Almost surely, 2^9936749 is an apocalyptic number.

It is an amenable number.

9936749 is a deficient number, since it is larger than the sum of its proper divisors (6415).

9936749 is a wasteful number, since it uses less digits than its factorization.

9936749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6414.

The product of its digits is 367416, while the sum is 47.

The square root of 9936749 is about 3152.2609346309. The cubic root of 9936749 is about 214.9882741036.

The spelling of 9936749 in words is "nine million, nine hundred thirty-six thousand, seven hundred forty-nine".