866730195 has 24 divisors (see below), whose sum is σ = 1503025056. Its totient is φ = 462043008.

The previous prime is 866730113. The next prime is 866730197. The reversal of 866730195 is 591037668.

It is a happy number.

It is not a de Polignac number, because 866730195 - 2⁸ = 866729939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 866730195.

It is not an unprimeable number, because it can be changed into a prime (866730197) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166959 + ... + 172071.

It is an arithmetic number, because the mean of its divisors is an integer number (62626044).

Almost surely, 2^866730195 is an apocalyptic number.

866730195 is a deficient number, since it is larger than the sum of its proper divisors (636294861).

866730195 is a wasteful number, since it uses less digits than its factorization.

866730195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8891 (or 8888 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 866730195 is about 29440.2818430802. The cubic root of 866730195 is about 953.4427972529.

The spelling of 866730195 in words is "eight hundred sixty-six million, seven hundred thirty thousand, one hundred ninety-five".