9966607 has 16 divisors (see below), whose sum is σ = 12267072. Its totient is φ = 7902720.

The previous prime is 9966599. The next prime is 9966623. The reversal of 9966607 is 7066699.

It is a happy number.

9966607 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9966607 - 2³ = 9966599 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9966667) 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, 6573 + ... + 7945.

It is an arithmetic number, because the mean of its divisors is an integer number (766692).

Almost surely, 2^9966607 is an apocalyptic number.

9966607 is a deficient number, since it is larger than the sum of its proper divisors (2300465).

9966607 is a wasteful number, since it uses less digits than its factorization.

9966607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458.

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

The square root of 9966607 is about 3156.9933481083. The cubic root of 9966607 is about 215.2033914489.

The spelling of 9966607 in words is "nine million, nine hundred sixty-six thousand, six hundred seven".