12173408 has 36 divisors (see below), whose sum is σ = 25963308. Its totient is φ = 5616000.

The previous prime is 12173387. The next prime is 12173419. The reversal of 12173408 is 80437121.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4283 + ... + 6533.

It is an arithmetic number, because the mean of its divisors is an integer number (721203).

Almost surely, 2^12173408 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 12173408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12981654).

12173408 is an abundant number, since it is smaller than the sum of its proper divisors (13789900).

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

12173408 is a wasteful number, since it uses less digits than its factorization.

12173408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287 (or 2266 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 12173408 is about 3489.0411290210. The cubic root of 12173408 is about 230.0403709853.

The spelling of 12173408 in words is "twelve million, one hundred seventy-three thousand, four hundred eight".