68868216 has 24 divisors (see below), whose sum is σ = 186518280. Its totient is φ = 22956048.

The previous prime is 68868203. The next prime is 68868223. The reversal of 68868216 is 61286886.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

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, 478180 + ... + 478323.

It is an arithmetic number, because the mean of its divisors is an integer number (7771595).

Almost surely, 2^68868216 is an apocalyptic number.

It is an amenable number.

68868216 is an abundant number, since it is smaller than the sum of its proper divisors (117650064).

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

68868216 is a wasteful number, since it uses less digits than its factorization.

68868216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956515 (or 956508 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 68868216 is about 8298.6876070858. The cubic root of 68868216 is about 409.8953054118.

The spelling of 68868216 in words is "sixty-eight million, eight hundred sixty-eight thousand, two hundred sixteen".