22716423 has 8 divisors (see below), whose sum is σ = 33654000. Its totient is φ = 15144264.

The previous prime is 22716401. The next prime is 22716431. The reversal of 22716423 is 32461722.

22716423 is a `hidden beast` number, since 227 + 16 + 423 = 666.

It is not a de Polignac number, because 22716423 - 2⁸ = 22716167 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 841349 = 22716423 / (2 + 2 + 7 + 1 + 6 + 4 + 2 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22716223) 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, 420648 + ... + 420701.

It is an arithmetic number, because the mean of its divisors is an integer number (4206750).

Almost surely, 2^22716423 is an apocalyptic number.

22716423 is a deficient number, since it is larger than the sum of its proper divisors (10937577).

22716423 is an equidigital number, since it uses as much as digits as its factorization.

22716423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841358 (or 841352 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 22716423 is about 4766.1748813907. The cubic root of 22716423 is about 283.2130856134.

The spelling of 22716423 in words is "twenty-two million, seven hundred sixteen thousand, four hundred twenty-three".