868773728 has 12 divisors (see below), whose sum is σ = 1710398340. Its totient is φ = 434386848.

The previous prime is 868773713. The next prime is 868773739. The reversal of 868773728 is 827377868.

868773728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13574558 + ... + 13574621.

It is an arithmetic number, because the mean of its divisors is an integer number (142533195).

Almost surely, 2^868773728 is an apocalyptic number.

It is an amenable number.

868773728 is a deficient number, since it is larger than the sum of its proper divisors (841624612).

868773728 is a wasteful number, since it uses less digits than its factorization.

868773728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27149189 (or 27149181 counting only the distinct ones).

The product of its digits is 6322176, while the sum is 56.

The square root of 868773728 is about 29474.9678201690. The cubic root of 868773728 is about 954.1915356570.

The spelling of 868773728 in words is "eight hundred sixty-eight million, seven hundred seventy-three thousand, seven hundred twenty-eight".