9923689 has 4 divisors (see below), whose sum is σ = 10243840. Its totient is φ = 9603540.

The previous prime is 9923677. The next prime is 9923701. The reversal of 9923689 is 9863299.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9863299 = 19 ⋅519121.

It is an interprime number because it is at equal distance from previous prime (9923677) and next prime (9923701).

It is a cyclic number.

It is not a de Polignac number, because 9923689 - 2¹¹ = 9921641 is a prime.

It is a Duffinian number.

9923689 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9923609) 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 in 3 ways as a sum of consecutive naturals, for example, 160029 + ... + 160090.

It is an arithmetic number, because the mean of its divisors is an integer number (2560960).

Almost surely, 2^9923689 is an apocalyptic number.

It is an amenable number.

9923689 is a deficient number, since it is larger than the sum of its proper divisors (320151).

9923689 is a wasteful number, since it uses less digits than its factorization.

9923689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320150.

The product of its digits is 209952, while the sum is 46.

The square root of 9923689 is about 3150.1887245052. The cubic root of 9923689 is about 214.8940455034.

The spelling of 9923689 in words is "nine million, nine hundred twenty-three thousand, six hundred eighty-nine".