9936423 has 12 divisors (see below), whose sum is σ = 16403088. Its totient is φ = 5677920.

The previous prime is 9936419. The next prime is 9936431. The reversal of 9936423 is 3246399.

It is a happy number.

9936423 is a `hidden beast` number, since 9 + 9 + 3 + 642 + 3 = 666.

It is not a de Polignac number, because 9936423 - 2² = 9936419 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

9936423 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9936923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78798 + ... + 78923.

It is an arithmetic number, because the mean of its divisors is an integer number (1366924).

Almost surely, 2^9936423 is an apocalyptic number.

9936423 is a deficient number, since it is larger than the sum of its proper divisors (6466665).

9936423 is a wasteful number, since it uses less digits than its factorization.

9936423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157734 (or 157731 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 9936423 is about 3152.2092252895. The cubic root of 9936423 is about 214.9859230012.

The spelling of 9936423 in words is "nine million, nine hundred thirty-six thousand, four hundred twenty-three".