9966873 has 16 divisors (see below), whose sum is σ = 15307776. Its totient is φ = 5650320.

The previous prime is 9966871. The next prime is 9966883. The reversal of 9966873 is 3786699.

It is a happy number.

It is not a de Polignac number, because 9966873 - 2¹ = 9966871 is a prime.

9966873 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9966871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 940 + ... + 4562.

It is an arithmetic number, because the mean of its divisors is an integer number (956736).

Almost surely, 2^9966873 is an apocalyptic number.

It is an amenable number.

9966873 is a deficient number, since it is larger than the sum of its proper divisors (5340903).

9966873 is a wasteful number, since it uses less digits than its factorization.

9966873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3764.

The product of its digits is 489888, while the sum is 48.

The square root of 9966873 is about 3157.0354765191. The cubic root of 9966873 is about 215.2053059618.

The spelling of 9966873 in words is "nine million, nine hundred sixty-six thousand, eight hundred seventy-three".