870902784 has 132 divisors (see below), whose sum is σ = 2563597296. Its totient is φ = 284663808.

The previous prime is 870902759. The next prime is 870902789. The reversal of 870902784 is 487209078.

It is not an unprimeable number, because it can be changed into a prime (870902789) 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 11 ways as a sum of consecutive naturals, for example, 487557 + ... + 489339.

Almost surely, 2^870902784 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 870902784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1281798648).

870902784 is an abundant number, since it is smaller than the sum of its proper divisors (1692694512).

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

870902784 is a wasteful number, since it uses less digits than its factorization.

870902784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862 (or 1841 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 870902784 is about 29511.0620615389. The cubic root of 870902784 is about 954.9703613692.

The spelling of 870902784 in words is "eight hundred seventy million, nine hundred two thousand, seven hundred eighty-four".