870733428 has 12 divisors (see below), whose sum is σ = 2031711360. Its totient is φ = 290244472.

The previous prime is 870733427. The next prime is 870733433. The reversal of 870733428 is 824337078.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 870733428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870733427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36280548 + ... + 36280571.

It is an arithmetic number, because the mean of its divisors is an integer number (169309280).

Almost surely, 2^870733428 is an apocalyptic number.

It is an amenable number.

870733428 is an abundant number, since it is smaller than the sum of its proper divisors (1160977932).

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

870733428 is a wasteful number, since it uses less digits than its factorization.

870733428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72561126 (or 72561124 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 870733428 is about 29508.1925573221. The cubic root of 870733428 is about 954.9084560881.

The spelling of 870733428 in words is "eight hundred seventy million, seven hundred thirty-three thousand, four hundred twenty-eight".