866087359 has 4 divisors (see below), whose sum is σ = 879014104. Its totient is φ = 853160616.

The previous prime is 866087351. The next prime is 866087371. The reversal of 866087359 is 953780668.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 866087359 - 2³ = 866087351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866087351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6463272 + ... + 6463405.

It is an arithmetic number, because the mean of its divisors is an integer number (219753526).

Almost surely, 2^866087359 is an apocalyptic number.

866087359 is a deficient number, since it is larger than the sum of its proper divisors (12926745).

866087359 is a wasteful number, since it uses less digits than its factorization.

866087359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12926744.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 866087359 is about 29429.3621915257. The cubic root of 866087359 is about 953.2070226343.

The spelling of 866087359 in words is "eight hundred sixty-six million, eighty-seven thousand, three hundred fifty-nine".