878597728 has 48 divisors (see below), whose sum is σ = 1749535200. Its totient is φ = 434304000.

The previous prime is 878597719. The next prime is 878597747. The reversal of 878597728 is 827795878.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1686108 + ... + 1686628.

It is an arithmetic number, because the mean of its divisors is an integer number (36448650).

Almost surely, 2^878597728 is an apocalyptic number.

It is an amenable number.

878597728 is a deficient number, since it is larger than the sum of its proper divisors (870937472).

878597728 is a wasteful number, since it uses less digits than its factorization.

878597728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031 (or 1023 counting only the distinct ones).

The product of its digits is 15805440, while the sum is 61.

The square root of 878597728 is about 29641.1492354801. The cubic root of 878597728 is about 957.7746952088.

The spelling of 878597728 in words is "eight hundred seventy-eight million, five hundred ninety-seven thousand, seven hundred twenty-eight".