9873689 has 4 divisors (see below), whose sum is σ = 11284224. Its totient is φ = 8463156.

The previous prime is 9873679. The next prime is 9873691. The reversal of 9873689 is 9863789.

9873689 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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: 9863789 = 13 ⋅758753.

It is a cyclic number.

It is not a de Polignac number, because 9873689 - 2⁸ = 9873433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9873649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705257 + ... + 705270.

It is an arithmetic number, because the mean of its divisors is an integer number (2821056).

Almost surely, 2^9873689 is an apocalyptic number.

It is an amenable number.

9873689 is a deficient number, since it is larger than the sum of its proper divisors (1410535).

9873689 is a wasteful number, since it uses less digits than its factorization.

9873689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410534.

The product of its digits is 653184, while the sum is 50.

The square root of 9873689 is about 3142.2426704505. The cubic root of 9873689 is about 214.5325267678.

The spelling of 9873689 in words is "nine million, eight hundred seventy-three thousand, six hundred eighty-nine".