22172023 has 8 divisors (see below), whose sum is σ = 23529600. Its totient is φ = 20847288.

The previous prime is 22171999. The next prime is 22172027. The reversal of 22172023 is 32027122.

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 22172023 - 2⁹ = 22171511 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 (22172027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6813 + ... + 9526.

It is an arithmetic number, because the mean of its divisors is an integer number (2941200).

Almost surely, 2^22172023 is an apocalyptic number.

22172023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22172023 is a deficient number, since it is larger than the sum of its proper divisors (1357577).

22172023 is a wasteful number, since it uses less digits than its factorization.

22172023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16421.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 22172023 is about 4708.7177660166. The cubic root of 22172023 is about 280.9323638416.

Adding to 22172023 its reverse (32027122), we get a palindrome (54199145).

The spelling of 22172023 in words is "twenty-two million, one hundred seventy-two thousand, twenty-three".