9665423 has 2 divisors, whose sum is σ = 9665424. Its totient is φ = 9665422.

The previous prime is 9665407. The next prime is 9665429. The reversal of 9665423 is 3245669.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9665423 - 2⁴ = 9665407 is a prime.

It is a d-powerful number, because it can be written as 9⁷ + 6⁴ + 6⁵ + 5⁷ + 4⁶ + 2¹³ + 3¹⁴ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9665429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4832711 + 4832712.

It is an arithmetic number, because the mean of its divisors is an integer number (4832712).

Almost surely, 2^9665423 is an apocalyptic number.

9665423 is a deficient number, since it is larger than the sum of its proper divisors (1).

9665423 is an equidigital number, since it uses as much as digits as its factorization.

9665423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 35.

The square root of 9665423 is about 3108.9263420030. The cubic root of 9665423 is about 213.0134150705.

The spelling of 9665423 in words is "nine million, six hundred sixty-five thousand, four hundred twenty-three".