866806307 has 4 divisors (see below), whose sum is σ = 878680440. Its totient is φ = 854932176.

The previous prime is 866806301. The next prime is 866806309. The reversal of 866806307 is 703608668.

866806307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 866806307 - 2⁶ = 866806243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (866806301) 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, 5936957 + ... + 5937102.

It is an arithmetic number, because the mean of its divisors is an integer number (219670110).

Almost surely, 2^866806307 is an apocalyptic number.

866806307 is a deficient number, since it is larger than the sum of its proper divisors (11874133).

866806307 is a wasteful number, since it uses less digits than its factorization.

866806307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11874132.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 866806307 is about 29441.5744653712. The cubic root of 866806307 is about 953.4707053280.

The spelling of 866806307 in words is "eight hundred sixty-six million, eight hundred six thousand, three hundred seven".