871971793 has 16 divisors (see below), whose sum is σ = 1090704384. Its totient is φ = 677226960.

The previous prime is 871971767. The next prime is 871971817. The reversal of 871971793 is 397179178.

It is a cyclic number.

It is not a de Polignac number, because 871971793 - 2⁵ = 871971761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 871971793.

It is not an unprimeable number, because it can be changed into a prime (871971733) 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 15 ways as a sum of consecutive naturals, for example, 5196 + ... + 42082.

It is an arithmetic number, because the mean of its divisors is an integer number (68169024).

Almost surely, 2^871971793 is an apocalyptic number.

It is an amenable number.

871971793 is a deficient number, since it is larger than the sum of its proper divisors (218732591).

871971793 is a wasteful number, since it uses less digits than its factorization.

871971793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37212.

The product of its digits is 666792, while the sum is 52.

The square root of 871971793 is about 29529.1685118291. The cubic root of 871971793 is about 955.3609348129.

The spelling of 871971793 in words is "eight hundred seventy-one million, nine hundred seventy-one thousand, seven hundred ninety-three".