834831728 has 40 divisors (see below), whose sum is σ = 1706736000. Its totient is φ = 394490304.

The previous prime is 834831689. The next prime is 834831731. The reversal of 834831728 is 827138438.

It is a happy number.

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, 131573 + ... + 137771.

It is an arithmetic number, because the mean of its divisors is an integer number (42668400).

Almost surely, 2^834831728 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 834831728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (853368000).

834831728 is an abundant number, since it is smaller than the sum of its proper divisors (871904272).

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

834831728 is a wasteful number, since it uses less digits than its factorization.

834831728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6669 (or 6663 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 834831728 is about 28893.4547605509. The cubic root of 834831728 is about 941.5997085168.

The spelling of 834831728 in words is "eight hundred thirty-four million, eight hundred thirty-one thousand, seven hundred twenty-eight".