173086816 has 72 divisors (see below), whose sum is σ = 399376656. Its totient is φ = 73624320.

The previous prime is 173086811. The next prime is 173086847. The reversal of 173086816 is 618680371.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173086811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 261526 + ... + 262186.

It is an arithmetic number, because the mean of its divisors is an integer number (5546898).

Almost surely, 2^173086816 is an apocalyptic number.

173086816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 173086816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199688328).

173086816 is an abundant number, since it is smaller than the sum of its proper divisors (226289840).

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

173086816 is a wasteful number, since it uses less digits than its factorization.

173086816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 173086816 is about 13156.2462731586. The cubic root of 173086816 is about 557.2986568069.

The spelling of 173086816 in words is "one hundred seventy-three million, eighty-six thousand, eight hundred sixteen".