872817136 has 60 divisors (see below), whose sum is σ = 1799429472. Its totient is φ = 410049792.

The previous prime is 872817103. The next prime is 872817151. The reversal of 872817136 is 631718278.

It is a junction number, because it is equal to n+sod(n) for n = 872817092 and 872817101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 790761 + ... + 791863.

Almost surely, 2^872817136 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 872817136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (899714736).

872817136 is an abundant number, since it is smaller than the sum of its proper divisors (926612336).

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

872817136 is a wasteful number, since it uses less digits than its factorization.

872817136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286 (or 1261 counting only the distinct ones).

The product of its digits is 112896, while the sum is 43.

The square root of 872817136 is about 29543.4787389705. The cubic root of 872817136 is about 955.6695636180.

The spelling of 872817136 in words is "eight hundred seventy-two million, eight hundred seventeen thousand, one hundred thirty-six".