869082660 has 36 divisors (see below), whose sum is σ = 2636217948. Its totient is φ = 231755328.

The previous prime is 869082659. The next prime is 869082673. The reversal of 869082660 is 66280968.

It can be written as a sum of positive squares in 2 ways, for example, as 96353856 + 772728804 = 9816^2 + 27798^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2413939 + ... + 2414298.

Almost surely, 2^869082660 is an apocalyptic number.

It is an amenable number.

869082660 is an abundant number, since it is smaller than the sum of its proper divisors (1767135288).

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

869082660 is a wasteful number, since it uses less digits than its factorization.

869082660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4828252 (or 4828247 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 869082660 is about 29480.2079368515. The cubic root of 869082660 is about 954.3046243152.

The spelling of 869082660 in words is "eight hundred sixty-nine million, eighty-two thousand, six hundred sixty".