9865423 has 8 divisors (see below), whose sum is σ = 10806480. Its totient is φ = 8964480.

The previous prime is 9865417. The next prime is 9865433. The reversal of 9865423 is 3245689.

9865423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-9865423 is a prime.

It is a d-powerful number, because it can be written as 9⁷ + 8 + 6⁷ + 5⁵ + 4⁷ + 2⁵ + 3¹⁴ .

It is a Duffinian number.

9865423 is a modest number, since divided by 5423 gives 986 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9865403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9513 + ... + 10498.

It is an arithmetic number, because the mean of its divisors is an integer number (1350810).

Almost surely, 2^9865423 is an apocalyptic number.

9865423 is a deficient number, since it is larger than the sum of its proper divisors (941057).

9865423 is a wasteful number, since it uses less digits than its factorization.

9865423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20057.

The product of its digits is 51840, while the sum is 37.

The square root of 9865423 is about 3140.9270924362. The cubic root of 9865423 is about 214.4726430047.

The spelling of 9865423 in words is "nine million, eight hundred sixty-five thousand, four hundred twenty-three".