12173990 has 8 divisors (see below), whose sum is σ = 21913200. Its totient is φ = 4869592.

The previous prime is 12173983. The next prime is 12174011. The reversal of 12173990 is 9937121.

It is a happy number.

12173990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608690 + ... + 608709.

It is an arithmetic number, because the mean of its divisors is an integer number (2739150).

Almost surely, 2^12173990 is an apocalyptic number.

12173990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12173990 is a deficient number, since it is larger than the sum of its proper divisors (9739210).

12173990 is a wasteful number, since it uses less digits than its factorization.

12173990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217406.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 12173990 is about 3489.1245320281. The cubic root of 12173990 is about 230.0440369366.

The spelling of 12173990 in words is "twelve million, one hundred seventy-three thousand, nine hundred ninety".