12173632 has 56 divisors (see below), whose sum is σ = 26115264. Its totient is φ = 5609472.

The previous prime is 12173617. The next prime is 12173639. The reversal of 12173632 is 23637121.

It is a junction number, because it is equal to n+sod(n) for n = 12173597 and 12173606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12173639) 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, 72813 + ... + 72979.

It is an arithmetic number, because the mean of its divisors is an integer number (466344).

Almost surely, 2^12173632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12173632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13057632).

12173632 is an abundant number, since it is smaller than the sum of its proper divisors (13941632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12173632 is a wasteful number, since it uses less digits than its factorization.

12173632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 253 counting only the distinct ones).

The product of its digits is 1512, while the sum is 25.

The square root of 12173632 is about 3489.0732293834. The cubic root of 12173632 is about 230.0417819494.

The spelling of 12173632 in words is "twelve million, one hundred seventy-three thousand, six hundred thirty-two".