9966583 has 16 divisors (see below), whose sum is σ = 11721600. Its totient is φ = 8376480.

The previous prime is 9966581. The next prime is 9966587. The reversal of 9966583 is 3856699.

It is a cyclic number.

It is not a de Polignac number, because 9966583 - 2¹ = 9966581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9966581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8433 + ... + 9541.

It is an arithmetic number, because the mean of its divisors is an integer number (732600).

Almost surely, 2^9966583 is an apocalyptic number.

9966583 is a deficient number, since it is larger than the sum of its proper divisors (1755017).

9966583 is a wasteful number, since it uses less digits than its factorization.

9966583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182.

The product of its digits is 349920, while the sum is 46.

The square root of 9966583 is about 3156.9895470210. The cubic root of 9966583 is about 215.2032187092.

The spelling of 9966583 in words is "nine million, nine hundred sixty-six thousand, five hundred eighty-three".