23172293 has 8 divisors (see below), whose sum is σ = 24373248. Its totient is φ = 21987504.

The previous prime is 23172287. The next prime is 23172301. The reversal of 23172293 is 39227132.

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 23172293 - 2¹⁸ = 22910149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 1046 + ... + 6887.

It is an arithmetic number, because the mean of its divisors is an integer number (3046656).

Almost surely, 2^23172293 is an apocalyptic number.

23172293 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

23172293 is a deficient number, since it is larger than the sum of its proper divisors (1200955).

23172293 is a wasteful number, since it uses less digits than its factorization.

23172293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8083.

The product of its digits is 4536, while the sum is 29.

The square root of 23172293 is about 4813.7607958851. The cubic root of 23172293 is about 285.0950457590.

The spelling of 23172293 in words is "twenty-three million, one hundred seventy-two thousand, two hundred ninety-three".