8500423 has 4 divisors (see below), whose sum is σ = 8533008. Its totient is φ = 8467840.

The previous prime is 8500421. The next prime is 8500433. The reversal of 8500423 is 3240058.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8500423 - 2¹ = 8500421 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8500394 and 8500403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8500421) 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, 15898 + ... + 16423.

It is an arithmetic number, because the mean of its divisors is an integer number (2133252).

Almost surely, 2^8500423 is an apocalyptic number.

8500423 is a deficient number, since it is larger than the sum of its proper divisors (32585).

8500423 is a wasteful number, since it uses less digits than its factorization.

8500423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32584.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 8500423 is about 2915.5484904217. The cubic root of 8500423 is about 204.0861404125.

The spelling of 8500423 in words is "eight million, five hundred thousand, four hundred twenty-three".