856386163 has 8 divisors (see below), whose sum is σ = 901974528. Its totient is φ = 811494024.

The previous prime is 856386109. The next prime is 856386217. The reversal of 856386163 is 361683658.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (856386109) and next prime (856386217).

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 856386163 - 2²¹ = 854289011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (856386103) 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, 171531 + ... + 176452.

It is an arithmetic number, because the mean of its divisors is an integer number (112746816).

Almost surely, 2^856386163 is an apocalyptic number.

856386163 is a deficient number, since it is larger than the sum of its proper divisors (45588365).

856386163 is a wasteful number, since it uses less digits than its factorization.

856386163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348113.

The product of its digits is 622080, while the sum is 46.

The square root of 856386163 is about 29264.0763223444. The cubic root of 856386163 is about 949.6346380810.

The spelling of 856386163 in words is "eight hundred fifty-six million, three hundred eighty-six thousand, one hundred sixty-three".