68017884 has 72 divisors (see below), whose sum is σ = 184023168. Its totient is φ = 19388160.

The previous prime is 68017879. The next prime is 68017907. The reversal of 68017884 is 48871086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37257 + ... + 39039.

Almost surely, 2^68017884 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 68017884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92011584).

68017884 is an abundant number, since it is smaller than the sum of its proper divisors (116005284).

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

68017884 is a wasteful number, since it uses less digits than its factorization.

68017884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835 (or 1816 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 68017884 is about 8247.2955567265. The cubic root of 68017884 is about 408.2012895650.

The spelling of 68017884 in words is "sixty-eight million, seventeen thousand, eight hundred eighty-four".