871427 has 4 divisors (see below), whose sum is σ = 890016. Its totient is φ = 852840.

The previous prime is 871393. The next prime is 871439. The reversal of 871427 is 724178.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 871427 - 2¹⁰ = 870403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 871427.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 871427.

It is not an unprimeable number, because it can be changed into a prime (871477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9224 + ... + 9317.

It is an arithmetic number, because the mean of its divisors is an integer number (222504).

2⁸⁷¹⁴²⁷ is an apocalyptic number.

871427 is a deficient number, since it is larger than the sum of its proper divisors (18589).

871427 is a wasteful number, since it uses less digits than its factorization.

871427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18588.

The product of its digits is 3136, while the sum is 29.

The square root of 871427 is about 933.5025441851. The cubic root of 871427 is about 95.5161928994.

The spelling of 871427 in words is "eight hundred seventy-one thousand, four hundred twenty-seven".