867981671 has 8 divisors (see below), whose sum is σ = 870879744. Its totient is φ = 865089720.

The previous prime is 867981649. The next prime is 867981691. The reversal of 867981671 is 176189768.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-867981671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867981601) 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, 553130 + ... + 554696.

It is an arithmetic number, because the mean of its divisors is an integer number (108859968).

Almost surely, 2^867981671 is an apocalyptic number.

867981671 is a deficient number, since it is larger than the sum of its proper divisors (2898073).

867981671 is a wasteful number, since it uses less digits than its factorization.

867981671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061.

The product of its digits is 1016064, while the sum is 53.

The square root of 867981671 is about 29461.5286602715. The cubic root of 867981671 is about 953.9014701482.

The spelling of 867981671 in words is "eight hundred sixty-seven million, nine hundred eighty-one thousand, six hundred seventy-one".