9666427 has 2 divisors, whose sum is σ = 9666428. Its totient is φ = 9666426.

The previous prime is 9666409. The next prime is 9666457. The reversal of 9666427 is 7246669.

9666427 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9666427 - 2²³ = 1277819 is a prime.

9666427 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9666427.

It is not a weakly prime, because it can be changed into another prime (9666457) 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 as a sum of consecutive naturals, namely, 4833213 + 4833214.

It is an arithmetic number, because the mean of its divisors is an integer number (4833214).

Almost surely, 2^9666427 is an apocalyptic number.

9666427 is a deficient number, since it is larger than the sum of its proper divisors (1).

9666427 is an equidigital number, since it uses as much as digits as its factorization.

9666427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 9666427 is about 3109.0878083451. The cubic root of 9666427 is about 213.0207904354.

The spelling of 9666427 in words is "nine million, six hundred sixty-six thousand, four hundred twenty-seven".