9689623 has 2 divisors, whose sum is σ = 9689624. Its totient is φ = 9689622.

The previous prime is 9689593. The next prime is 9689633. The reversal of 9689623 is 3269869.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9689623 - 2⁵ = 9689591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9689623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9689633) 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 as a sum of consecutive naturals, namely, 4844811 + 4844812.

It is an arithmetic number, because the mean of its divisors is an integer number (4844812).

Almost surely, 2^9689623 is an apocalyptic number.

9689623 is a deficient number, since it is larger than the sum of its proper divisors (1).

9689623 is an equidigital number, since it uses as much as digits as its factorization.

9689623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 43.

The square root of 9689623 is about 3112.8159277413. The cubic root of 9689623 is about 213.1910457984.

The spelling of 9689623 in words is "nine million, six hundred eighty-nine thousand, six hundred twenty-three".