870784512 has 80 divisors (see below), whose sum is σ = 2498329680. Its totient is φ = 267927552.

The previous prime is 870784501. The next prime is 870784547. The reversal of 870784512 is 215487078.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1837 + ... + 41772.

It is an arithmetic number, because the mean of its divisors is an integer number (31229121).

Almost surely, 2^870784512 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 870784512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1249164840).

870784512 is an abundant number, since it is smaller than the sum of its proper divisors (1627545168).

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

870784512 is a wasteful number, since it uses less digits than its factorization.

870784512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43643 (or 43627 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 42.

The square root of 870784512 is about 29509.0581347491. The cubic root of 870784512 is about 954.9271298437.

The spelling of 870784512 in words is "eight hundred seventy million, seven hundred eighty-four thousand, five hundred twelve".