23172273 has 12 divisors (see below), whose sum is σ = 33713680. Its totient is φ = 15336216.

The previous prime is 23172251. The next prime is 23172287. The reversal of 23172273 is 37227132.

It is a happy number.

It is not a de Polignac number, because 23172273 - 2⁶ = 23172209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23172203) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 8011 + ... + 10512.

Almost surely, 2^23172273 is an apocalyptic number.

It is an amenable number.

23172273 is a deficient number, since it is larger than the sum of its proper divisors (10541407).

23172273 is a wasteful number, since it uses less digits than its factorization.

23172273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18668 (or 18665 counting only the distinct ones).

The product of its digits is 3528, while the sum is 27.

The square root of 23172273 is about 4813.7587185068. The cubic root of 23172273 is about 285.0949637372.

The spelling of 23172273 in words is "twenty-three million, one hundred seventy-two thousand, two hundred seventy-three".