836134656 has 144 divisors (see below), whose sum is σ = 2603107584. Its totient is φ = 233275392.

The previous prime is 836134633. The next prime is 836134667. The reversal of 836134656 is 656431638.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 229360 + ... + 232976.

It is an arithmetic number, because the mean of its divisors is an integer number (18077136).

Almost surely, 2^836134656 is an apocalyptic number.

836134656 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 836134656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1301553792).

836134656 is an abundant number, since it is smaller than the sum of its proper divisors (1766972928).

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

836134656 is a wasteful number, since it uses less digits than its factorization.

836134656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3686 (or 3672 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

The square root of 836134656 is about 28915.9930834132. The cubic root of 836134656 is about 942.0893077548.

The spelling of 836134656 in words is "eight hundred thirty-six million, one hundred thirty-four thousand, six hundred fifty-six".