866727201 has 8 divisors (see below), whose sum is σ = 1223614944. Its totient is φ = 543828800.

The previous prime is 866727163. The next prime is 866727217. The reversal of 866727201 is 102727668.

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 866727201 - 2⁶ = 866727137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 866727201.

It is not an unprimeable number, because it can be changed into a prime (866727241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8497275 + ... + 8497376.

It is an arithmetic number, because the mean of its divisors is an integer number (152951868).

Almost surely, 2^866727201 is an apocalyptic number.

It is an amenable number.

866727201 is a deficient number, since it is larger than the sum of its proper divisors (356887743).

866727201 is a wasteful number, since it uses less digits than its factorization.

866727201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16994671.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 866727201 is about 29440.2309943383. The cubic root of 866727201 is about 953.4416994060.

The spelling of 866727201 in words is "eight hundred sixty-six million, seven hundred twenty-seven thousand, two hundred one".