9966626 has 8 divisors (see below), whose sum is σ = 15297744. Its totient is φ = 4867380.

The previous prime is 9966623. The next prime is 9966629. The reversal of 9966626 is 6266699.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9966623) and next prime (9966629).

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9966623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57860 + ... + 58031.

It is an arithmetic number, because the mean of its divisors is an integer number (1912218).

Almost surely, 2^9966626 is an apocalyptic number.

9966626 is a deficient number, since it is larger than the sum of its proper divisors (5331118).

9966626 is a wasteful number, since it uses less digits than its factorization.

9966626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115936.

The product of its digits is 209952, while the sum is 44.

The square root of 9966626 is about 3156.9963572991. The cubic root of 9966626 is about 215.2035282009.

The spelling of 9966626 in words is "nine million, nine hundred sixty-six thousand, six hundred twenty-six".