869866533 has 10 divisors (see below), whose sum is σ = 1299430374. Its totient is φ = 579910968.

The previous prime is 869866519. The next prime is 869866573. The reversal of 869866533 is 335668968.

869866533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 859251969 + 10614564 = 29313^2 + 3258^2 .

It is not a de Polignac number, because 869866533 - 2⁶ = 869866469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 869866533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869866573) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5369466 + ... + 5369627.

Almost surely, 2^869866533 is an apocalyptic number.

It is an amenable number.

869866533 is a deficient number, since it is larger than the sum of its proper divisors (429563841).

869866533 is a wasteful number, since it uses less digits than its factorization.

869866533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10739105 (or 10739096 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The square root of 869866533 is about 29493.4998431858. The cubic root of 869866533 is about 954.5914512084.

The spelling of 869866533 in words is "eight hundred sixty-nine million, eight hundred sixty-six thousand, five hundred thirty-three".