9966670 has 16 divisors (see below), whose sum is σ = 20503008. Its totient is φ = 3417120.

The previous prime is 9966667. The next prime is 9966689. The reversal of 9966670 is 766699.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71121 + ... + 71260.

It is an arithmetic number, because the mean of its divisors is an integer number (1281438).

Almost surely, 2^9966670 is an apocalyptic number.

9966670 is an abundant number, since it is smaller than the sum of its proper divisors (10536338).

9966670 is a wasteful number, since it uses less digits than its factorization.

9966670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142395.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 9966670 is about 3157.0033259406. The cubic root of 9966670 is about 215.2038448892.

The spelling of 9966670 in words is "nine million, nine hundred sixty-six thousand, six hundred seventy".