23173222 has 4 divisors (see below), whose sum is σ = 34759836. Its totient is φ = 11586610.

The previous prime is 23173181. The next prime is 23173231. The reversal of 23173222 is 22237132.

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

It is a super-2 number, since 2×23173222² = 1073996435722568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23173193 and 23173202.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5793304 + ... + 5793307.

It is an arithmetic number, because the mean of its divisors is an integer number (8689959).

Almost surely, 2^23173222 is an apocalyptic number.

23173222 is a deficient number, since it is larger than the sum of its proper divisors (11586614).

23173222 is a wasteful number, since it uses less digits than its factorization.

23173222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11586613.

The product of its digits is 1008, while the sum is 22.

The square root of 23173222 is about 4813.8572891186. The cubic root of 23173222 is about 285.0988556216.

The spelling of 23173222 in words is "twenty-three million, one hundred seventy-three thousand, two hundred twenty-two".