866748289 has 12 divisors (see below), whose sum is σ = 1002851920. Its totient is φ = 746479800.

The previous prime is 866748229. The next prime is 866748299. The reversal of 866748289 is 982847668.

It is not a de Polignac number, because 866748289 - 2¹⁷ = 866617217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (866748229) 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, 186207 + ... + 190804.

Almost surely, 2^866748289 is an apocalyptic number.

It is an amenable number.

866748289 is a deficient number, since it is larger than the sum of its proper divisors (136103631).

866748289 is a wasteful number, since it uses less digits than its factorization.

866748289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377052 (or 377041 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 58.

The square root of 866748289 is about 29440.5891415236. The cubic root of 866748289 is about 953.4494319488.

The spelling of 866748289 in words is "eight hundred sixty-six million, seven hundred forty-eight thousand, two hundred eighty-nine".