9660997 has 8 divisors (see below), whose sum is σ = 9916280. Its totient is φ = 9408960.

The previous prime is 9660979. The next prime is 9661009. The reversal of 9660997 is 7990669.

It can be written as a sum of positive squares in 4 ways, for example, as 2268036 + 7392961 = 1506^2 + 2719^2 .

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 9660997 - 2⁷ = 9660869 is a prime.

It is a Duffinian number.

9660997 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9660907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5923 + ... + 7375.

It is an arithmetic number, because the mean of its divisors is an integer number (1239535).

Almost surely, 2^9660997 is an apocalyptic number.

It is an amenable number.

9660997 is a deficient number, since it is larger than the sum of its proper divisors (255283).

9660997 is a wasteful number, since it uses less digits than its factorization.

9660997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623.

The product of its (nonzero) digits is 183708, while the sum is 46.

The square root of 9660997 is about 3108.2144391917. The cubic root of 9660997 is about 212.9808956688.

The spelling of 9660997 in words is "nine million, six hundred sixty thousand, nine hundred ninety-seven".