173989216 has 12 divisors (see below), whose sum is σ = 342541332. Its totient is φ = 86994592.

The previous prime is 173989201. The next prime is 173989217. The reversal of 173989216 is 612989371.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173989217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2718550 + ... + 2718613.

It is an arithmetic number, because the mean of its divisors is an integer number (28545111).

Almost surely, 2^173989216 is an apocalyptic number.

173989216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

173989216 is a deficient number, since it is larger than the sum of its proper divisors (168552116).

173989216 is an equidigital number, since it uses as much as digits as its factorization.

173989216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5437173 (or 5437165 counting only the distinct ones).

The product of its digits is 163296, while the sum is 46.

The square root of 173989216 is about 13190.4971854741. The cubic root of 173989216 is about 558.2654834805.

The spelling of 173989216 in words is "one hundred seventy-three million, nine hundred eighty-nine thousand, two hundred sixteen".