9766649 has 8 divisors (see below), whose sum is σ = 10270920. Its totient is φ = 9273600.

The previous prime is 9766637. The next prime is 9766667. The reversal of 9766649 is 9466679.

9766649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1024 + 9765625 = 32^2 + 3125^2 .

It is a sliding number, since 9766649 = 1024 + 9765625 and 1/1024 + 1/9765625 = 0.0009766649.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9766649 - 2¹⁶ = 9701113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9766609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 992 + ... + 4529.

It is an arithmetic number, because the mean of its divisors is an integer number (1283865).

Almost surely, 2^9766649 is an apocalyptic number.

It is an amenable number.

9766649 is a deficient number, since it is larger than the sum of its proper divisors (504271).

9766649 is a wasteful number, since it uses less digits than its factorization.

9766649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611.

The product of its digits is 489888, while the sum is 47.

The square root of 9766649 is about 3125.1638357053. The cubic root of 9766649 is about 213.7544640724.

The spelling of 9766649 in words is "nine million, seven hundred sixty-six thousand, six hundred forty-nine".