834889728 has 48 divisors (see below), whose sum is σ = 2225845440. Its totient is φ = 278294528.

The previous prime is 834889709. The next prime is 834889789. The reversal of 834889728 is 827988438.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61800 + ... + 74087.

It is an arithmetic number, because the mean of its divisors is an integer number (46371780).

Almost surely, 2^834889728 is an apocalyptic number.

It is an amenable number.

834889728 is an abundant number, since it is smaller than the sum of its proper divisors (1390955712).

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

834889728 is a wasteful number, since it uses less digits than its factorization.

834889728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135912 (or 135892 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 57.

The square root of 834889728 is about 28894.4584306403. The cubic root of 834889728 is about 941.6215139165.

The spelling of 834889728 in words is "eight hundred thirty-four million, eight hundred eighty-nine thousand, seven hundred twenty-eight".