9666423 has 12 divisors (see below), whose sum is σ = 15036840. Its totient is φ = 5948496.

The previous prime is 9666409. The next prime is 9666427. The reversal of 9666423 is 3246669.

It is not a de Polignac number, because 9666423 - 2¹⁸ = 9404279 is a prime.

It is a super-2 number, since 2×9666423² = 186879467229858, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9666427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41193 + ... + 41426.

It is an arithmetic number, because the mean of its divisors is an integer number (1253070).

Almost surely, 2^9666423 is an apocalyptic number.

9666423 is a deficient number, since it is larger than the sum of its proper divisors (5370417).

9666423 is a wasteful number, since it uses less digits than its factorization.

9666423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82638 (or 82635 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 9666423 is about 3109.0871650695. The cubic root of 9666423 is about 213.0207610525.

The spelling of 9666423 in words is "nine million, six hundred sixty-six thousand, four hundred twenty-three".