871391338 has 64 divisors (see below), whose sum is σ = 1534049280. Its totient is φ = 368409600.

The previous prime is 871391263. The next prime is 871391359. The reversal of 871391338 is 833193178.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 871391294 and 871391303.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1060968 + ... + 1061788.

It is an arithmetic number, because the mean of its divisors is an integer number (23969520).

Almost surely, 2^871391338 is an apocalyptic number.

871391338 is a deficient number, since it is larger than the sum of its proper divisors (662657942).

871391338 is a wasteful number, since it uses less digits than its factorization.

871391338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943.

The product of its digits is 108864, while the sum is 43.

The square root of 871391338 is about 29519.3383733443. The cubic root of 871391338 is about 955.1488992359.

The spelling of 871391338 in words is "eight hundred seventy-one million, three hundred ninety-one thousand, three hundred thirty-eight".