871579028 has 12 divisors (see below), whose sum is σ = 1525651092. Its totient is φ = 435678720.

The previous prime is 871579013. The next prime is 871579073. The reversal of 871579028 is 820975178.

It can be written as a sum of positive squares in 2 ways, for example, as 826447504 + 45131524 = 28748^2 + 6718^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8525 + ... + 42612.

It is an arithmetic number, because the mean of its divisors is an integer number (127137591).

Almost surely, 2^871579028 is an apocalyptic number.

It is an amenable number.

871579028 is a deficient number, since it is larger than the sum of its proper divisors (654072064).

871579028 is a wasteful number, since it uses less digits than its factorization.

871579028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55402 (or 55400 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 47.

The square root of 871579028 is about 29522.5173045931. The cubic root of 871579028 is about 955.2174711926.

The spelling of 871579028 in words is "eight hundred seventy-one million, five hundred seventy-nine thousand, twenty-eight".