22687423 has 4 divisors (see below), whose sum is σ = 24749928. Its totient is φ = 20624920.

The previous prime is 22687421. The next prime is 22687429. The reversal of 22687423 is 32478622.

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 22687423 - 2¹ = 22687421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22687421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031236 + ... + 1031257.

It is an arithmetic number, because the mean of its divisors is an integer number (6187482).

Almost surely, 2^22687423 is an apocalyptic number.

22687423 is a deficient number, since it is larger than the sum of its proper divisors (2062505).

22687423 is a wasteful number, since it uses less digits than its factorization.

22687423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062504.

The product of its digits is 32256, while the sum is 34.

The square root of 22687423 is about 4763.1316379038. The cubic root of 22687423 is about 283.0925167930.

The spelling of 22687423 in words is "twenty-two million, six hundred eighty-seven thousand, four hundred twenty-three".