867085671 has 32 divisors (see below), whose sum is σ = 1259338752. Its totient is φ = 529168640.

The previous prime is 867085649. The next prime is 867085673. The reversal of 867085671 is 176580768.

It is a cyclic number.

It is not a de Polignac number, because 867085671 - 2²¹ = 864988519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 867085671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867085673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147046 + ... + 152828.

It is an arithmetic number, because the mean of its divisors is an integer number (39354336).

Almost surely, 2^867085671 is an apocalyptic number.

867085671 is a deficient number, since it is larger than the sum of its proper divisors (392253081).

867085671 is a wasteful number, since it uses less digits than its factorization.

867085671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5903.

The product of its (nonzero) digits is 564480, while the sum is 48.

The square root of 867085671 is about 29446.3184625854. The cubic root of 867085671 is about 953.5731260485.

The spelling of 867085671 in words is "eight hundred sixty-seven million, eighty-five thousand, six hundred seventy-one".