869011056 has 60 divisors (see below), whose sum is σ = 2560033320. Its totient is φ = 274423680.

The previous prime is 869011043. The next prime is 869011057. The reversal of 869011056 is 650110968.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 869011056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869011057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156075 + ... + 161546.

It is an arithmetic number, because the mean of its divisors is an integer number (42667222).

Almost surely, 2^869011056 is an apocalyptic number.

It is an amenable number.

869011056 is an abundant number, since it is smaller than the sum of its proper divisors (1691022264).

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

869011056 is a wasteful number, since it uses less digits than its factorization.

869011056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317654 (or 317645 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 869011056 is about 29478.9934699270. The cubic root of 869011056 is about 954.2784151070.

The spelling of 869011056 in words is "eight hundred sixty-nine million, eleven thousand, fifty-six".