866356147 has 8 divisors (see below), whose sum is σ = 894920976. Its totient is φ = 838062432.

The previous prime is 866356133. The next prime is 866356151. The reversal of 866356147 is 741653668.

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

It is a de Polignac number, because none of the positive numbers 2^k-866356147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 866356097 and 866356106.

It is not an unprimeable number, because it can be changed into a prime (866356187) 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, 61273 + ... + 74074.

It is an arithmetic number, because the mean of its divisors is an integer number (111865122).

Almost surely, 2^866356147 is an apocalyptic number.

866356147 is a deficient number, since it is larger than the sum of its proper divisors (28564829).

866356147 is a wasteful number, since it uses less digits than its factorization.

866356147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135557.

The product of its digits is 725760, while the sum is 46.

The square root of 866356147 is about 29433.9285009664. The cubic root of 866356147 is about 953.3056208901.

The spelling of 866356147 in words is "eight hundred sixty-six million, three hundred fifty-six thousand, one hundred forty-seven".