68173216 has 48 divisors (see below), whose sum is σ = 145877760. Its totient is φ = 31242240.

The previous prime is 68173177. The next prime is 68173271. The reversal of 68173216 is 61237186.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17040 + ... + 20656.

It is an arithmetic number, because the mean of its divisors is an integer number (3039120).

Almost surely, 2^68173216 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 68173216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72938880).

68173216 is an abundant number, since it is smaller than the sum of its proper divisors (77704544).

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

68173216 is a wasteful number, since it uses less digits than its factorization.

68173216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677 (or 3669 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 68173216 is about 8256.7073340406. The cubic root of 68173216 is about 408.5117888678.

The spelling of 68173216 in words is "sixty-eight million, one hundred seventy-three thousand, two hundred sixteen".