22705023 has 8 divisors (see below), whose sum is σ = 33025536. Its totient is φ = 13760600.

The previous prime is 22705009. The next prime is 22705031. The reversal of 22705023 is 32050722.

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

It is a cyclic number.

It is not a de Polignac number, because 22705023 - 2⁶ = 22704959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22705043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343983 + ... + 344048.

It is an arithmetic number, because the mean of its divisors is an integer number (4128192).

Almost surely, 2^22705023 is an apocalyptic number.

22705023 is a deficient number, since it is larger than the sum of its proper divisors (10320513).

22705023 is a wasteful number, since it uses less digits than its factorization.

22705023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688045.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 22705023 is about 4764.9788037304. The cubic root of 22705023 is about 283.1657018416.

Adding to 22705023 its reverse (32050722), we get a palindrome (54755745).

The spelling of 22705023 in words is "twenty-two million, seven hundred five thousand, twenty-three".