9666149 has 8 divisors (see below), whose sum is σ = 10376280. Its totient is φ = 8971776.

The previous prime is 9666143. The next prime is 9666169. The reversal of 9666149 is 9416669.

It can be written as a sum of positive squares in 4 ways, for example, as 3265249 + 6400900 = 1807^2 + 2530^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9666149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9666143) 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, 2654 + ... + 5135.

It is an arithmetic number, because the mean of its divisors is an integer number (1297035).

Almost surely, 2^9666149 is an apocalyptic number.

It is an amenable number.

9666149 is a deficient number, since it is larger than the sum of its proper divisors (710131).

9666149 is a wasteful number, since it uses less digits than its factorization.

9666149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7879.

The product of its digits is 69984, while the sum is 41.

The square root of 9666149 is about 3109.0431003767. The cubic root of 9666149 is about 213.0187483038.

The spelling of 9666149 in words is "nine million, six hundred sixty-six thousand, one hundred forty-nine".