868886272 has 72 divisors (see below), whose sum is σ = 1822381344. Its totient is φ = 412667904.

The previous prime is 868886261. The next prime is 868886279. The reversal of 868886272 is 272688868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868886279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1018198 + ... + 1019050.

It is an arithmetic number, because the mean of its divisors is an integer number (25310852).

Almost surely, 2^868886272 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 868886272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (911190672).

868886272 is an abundant number, since it is smaller than the sum of its proper divisors (953495072).

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

868886272 is a wasteful number, since it uses less digits than its factorization.

868886272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065 (or 1051 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 55.

The square root of 868886272 is about 29476.8769037698. The cubic root of 868886272 is about 954.2327369855.

The spelling of 868886272 in words is "eight hundred sixty-eight million, eight hundred eighty-six thousand, two hundred seventy-two".