871378 has 16 divisors (see below), whose sum is σ = 1437120. Its totient is φ = 394416.

The previous prime is 871349. The next prime is 871393. The reversal of 871378 is 873178.

It is a happy number.

It is an unprimeable number.

871378 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376 + ... + 1372.

It is an arithmetic number, because the mean of its divisors is an integer number (89820).

2⁸⁷¹³⁷⁸ is an apocalyptic number.

871378 is a deficient number, since it is larger than the sum of its proper divisors (565742).

871378 is a wasteful number, since it uses less digits than its factorization.

871378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041.

The product of its digits is 9408, while the sum is 34.

The square root of 871378 is about 933.4762985743. The cubic root of 871378 is about 95.5144025864.

The spelling of 871378 in words is "eight hundred seventy-one thousand, three hundred seventy-eight".