22173173 has 8 divisors (see below), whose sum is σ = 25240896. Its totient is φ = 19280800.

The previous prime is 22173157. The next prime is 22173187. The reversal of 22173173 is 37137122.

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

It is not a de Polignac number, because 22173173 - 2⁴ = 22173157 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 (22172173) 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, 43568 + ... + 44073.

It is an arithmetic number, because the mean of its divisors is an integer number (3155112).

Almost surely, 2^22173173 is an apocalyptic number.

22173173 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

22173173 is a deficient number, since it is larger than the sum of its proper divisors (3067723).

22173173 is a wasteful number, since it uses less digits than its factorization.

22173173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87675.

The product of its digits is 1764, while the sum is 26.

The square root of 22173173 is about 4708.8398783565. The cubic root of 22173173 is about 280.9372208128.

The spelling of 22173173 in words is "twenty-two million, one hundred seventy-three thousand, one hundred seventy-three".