871940395 has 8 divisors (see below), whose sum is σ = 1048039056. Its totient is φ = 696411936.

The previous prime is 871940393. The next prime is 871940417. The reversal of 871940395 is 593049178.

It is a happy number.

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 871940395 - 2¹ = 871940393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (871940393) 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, 139177 + ... + 145306.

It is an arithmetic number, because the mean of its divisors is an integer number (131004882).

Almost surely, 2^871940395 is an apocalyptic number.

871940395 is a deficient number, since it is larger than the sum of its proper divisors (176098661).

871940395 is a wasteful number, since it uses less digits than its factorization.

871940395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285101.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 871940395 is about 29528.6368632214. The cubic root of 871940395 is about 955.3494677819.

The spelling of 871940395 in words is "eight hundred seventy-one million, nine hundred forty thousand, three hundred ninety-five".