870948828 has 96 divisors (see below), whose sum is σ = 2516774400. Its totient is φ = 258847488.

The previous prime is 870948821. The next prime is 870948829. The reversal of 870948828 is 828849078.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870948821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22401 + ... + 47367.

It is an arithmetic number, because the mean of its divisors is an integer number (26216400).

Almost surely, 2^870948828 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 870948828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1258387200).

870948828 is an abundant number, since it is smaller than the sum of its proper divisors (1645825572).

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

870948828 is a wasteful number, since it uses less digits than its factorization.

870948828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25016 (or 25008 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 54.

The square root of 870948828 is about 29511.8421654766. The cubic root of 870948828 is about 954.9871906033.

The spelling of 870948828 in words is "eight hundred seventy million, nine hundred forty-eight thousand, eight hundred twenty-eight".