871449552 has 120 divisors (see below), whose sum is σ = 2495230920. Its totient is φ = 283852800.

The previous prime is 871449511. The next prime is 871449617. The reversal of 871449552 is 255944178.

871449552 is a `hidden beast` number, since 87 + 14 + 4 + 9 + 552 = 666.

871449552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 134652816 + 736796736 = 11604^2 + 27144^2 .

It is a junction number, because it is equal to n+sod(n) for n = 871449498 and 871449507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1242802 + ... + 1243502.

It is an arithmetic number, because the mean of its divisors is an integer number (20793591).

Almost surely, 2^871449552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 871449552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1247615460).

871449552 is an abundant number, since it is smaller than the sum of its proper divisors (1623781368).

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

871449552 is a wasteful number, since it uses less digits than its factorization.

871449552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901 (or 892 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 871449552 is about 29520.3243884616. The cubic root of 871449552 is about 955.1701685927.

The spelling of 871449552 in words is "eight hundred seventy-one million, four hundred forty-nine thousand, five hundred fifty-two".