868408860 has 48 divisors (see below), whose sum is σ = 2652596352. Its totient is φ = 210523200.

The previous prime is 868408847. The next prime is 868408873. The reversal of 868408860 is 68804868.

It is an interprime number because it is at equal distance from previous prime (868408847) and next prime (868408873).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657226 + ... + 658545.

It is an arithmetic number, because the mean of its divisors is an integer number (55262424).

Almost surely, 2^868408860 is an apocalyptic number.

It is an amenable number.

868408860 is an abundant number, since it is smaller than the sum of its proper divisors (1784187492).

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

868408860 is a wasteful number, since it uses less digits than its factorization.

868408860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315794 (or 1315792 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 48.

The square root of 868408860 is about 29468.7777147272. Note that the first 4 decimals coincide. The cubic root of 868408860 is about 954.0579363485.

The spelling of 868408860 in words is "eight hundred sixty-eight million, four hundred eight thousand, eight hundred sixty".