866802361 has 8 divisors (see below), whose sum is σ = 888902784. Its totient is φ = 844747680.

The previous prime is 866802359. The next prime is 866802389. The reversal of 866802361 is 163208668.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 866802361 - 2¹ = 866802359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (866802331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28716 + ... + 50578.

It is an arithmetic number, because the mean of its divisors is an integer number (111112848).

Almost surely, 2^866802361 is an apocalyptic number.

It is an amenable number.

866802361 is a deficient number, since it is larger than the sum of its proper divisors (22100423).

866802361 is a wasteful number, since it uses less digits than its factorization.

866802361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22871.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 866802361 is about 29441.5074512159. The cubic root of 866802361 is about 953.4692584837.

The spelling of 866802361 in words is "eight hundred sixty-six million, eight hundred two thousand, three hundred sixty-one".