836873856 has 320 divisors, whose sum is σ = 3068714880. Its totient is φ = 220465152.

The previous prime is 836873827. The next prime is 836873879. The reversal of 836873856 is 658378638.

It is a happy number.

It is a super-3 number, since 3×836873856³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 39 ways as a sum of consecutive naturals, for example, 943045 + ... + 943931.

It is an arithmetic number, because the mean of its divisors is an integer number (9589734).

Almost surely, 2^836873856 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 836873856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1534357440).

836873856 is an abundant number, since it is smaller than the sum of its proper divisors (2231841024).

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

836873856 is a wasteful number, since it uses less digits than its factorization.

836873856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933 (or 912 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 836873856 is about 28928.7721135896. The cubic root of 836873856 is about 942.3668496924.

The spelling of 836873856 in words is "eight hundred thirty-six million, eight hundred seventy-three thousand, eight hundred fifty-six".