866483968 has 72 divisors (see below), whose sum is σ = 2062706688. Its totient is φ = 355187712.

The previous prime is 866483951. The next prime is 866483983. The reversal of 866483968 is 869384668.

866483968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30705 + ... + 51727.

It is an arithmetic number, because the mean of its divisors is an integer number (28648704).

Almost surely, 2^866483968 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 866483968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1031353344).

866483968 is an abundant number, since it is smaller than the sum of its proper divisors (1196222720).

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

866483968 is a wasteful number, since it uses less digits than its factorization.

866483968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21069 (or 21055 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 58.

The square root of 866483968 is about 29436.0997416438. The cubic root of 866483968 is about 953.3525017201.

The spelling of 866483968 in words is "eight hundred sixty-six million, four hundred eighty-three thousand, nine hundred sixty-eight".