868602872 has 8 divisors (see below), whose sum is σ = 1628630400. Its totient is φ = 434301432.

The previous prime is 868602871. The next prime is 868602877. The reversal of 868602872 is 278206868.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868602871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54287672 + ... + 54287687.

It is an arithmetic number, because the mean of its divisors is an integer number (203578800).

Almost surely, 2^868602872 is an apocalyptic number.

It is an amenable number.

868602872 is a deficient number, since it is larger than the sum of its proper divisors (760027528).

868602872 is a wasteful number, since it uses less digits than its factorization.

868602872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108575365 (or 108575361 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The square root of 868602872 is about 29472.0693538815. The cubic root of 868602872 is about 954.1289800370.

The spelling of 868602872 in words is "eight hundred sixty-eight million, six hundred two thousand, eight hundred seventy-two".