9960649 has 4 divisors (see below), whose sum is σ = 10192336. Its totient is φ = 9728964.

The previous prime is 9960619. The next prime is 9960653. The reversal of 9960649 is 9460699.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9960649 - 2²¹ = 7863497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 231643 = 9960649 / (9 + 9 + 6 + 0 + 6 + 4 + 9).

It is a Duffinian number.

9960649 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9960619) 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, 115779 + ... + 115864.

It is an arithmetic number, because the mean of its divisors is an integer number (2548084).

Almost surely, 2^9960649 is an apocalyptic number.

It is an amenable number.

9960649 is a deficient number, since it is larger than the sum of its proper divisors (231687).

9960649 is a wasteful number, since it uses less digits than its factorization.

9960649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231686.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 9960649 is about 3156.0495876966. The cubic root of 9960649 is about 215.1605003096.

It can be divided in two parts, 9960 and 649, that added together give a square (10609 = 103²).

The spelling of 9960649 in words is "nine million, nine hundred sixty thousand, six hundred forty-nine".