871245828 has 48 divisors (see below), whose sum is σ = 2290619520. Its totient is φ = 286322400.

The previous prime is 871245821. The next prime is 871245841. The reversal of 871245828 is 828542178.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (871245821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49143 + ... + 64478.

It is an arithmetic number, because the mean of its divisors is an integer number (47721240).

Almost surely, 2^871245828 is an apocalyptic number.

It is an amenable number.

871245828 is an abundant number, since it is smaller than the sum of its proper divisors (1419373692).

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

871245828 is a wasteful number, since it uses less digits than its factorization.

871245828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113705 (or 113697 counting only the distinct ones).

The product of its digits is 286720, while the sum is 45.

The square root of 871245828 is about 29516.8736149342. The cubic root of 871245828 is about 955.0957308345.

The spelling of 871245828 in words is "eight hundred seventy-one million, two hundred forty-five thousand, eight hundred twenty-eight".