871400 has 24 divisors (see below), whose sum is σ = 2026470. Its totient is φ = 348480.

The previous prime is 871393. The next prime is 871439. The reversal of 871400 is 4178.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 850084 + 21316 = 922^2 + 146^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable 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 5 ways as a sum of consecutive naturals, for example, 1979 + ... + 2378.

2⁸⁷¹⁴⁰⁰ is an apocalyptic number.

It is an amenable number.

871400 is an abundant number, since it is smaller than the sum of its proper divisors (1155070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

871400 is a wasteful number, since it uses less digits than its factorization.

871400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4373 (or 4364 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 871400 is about 933.4880824092. The cubic root of 871400 is about 95.5152064087.

Adding to 871400 its reverse (4178), we get a palindrome (875578).

The spelling of 871400 in words is "eight hundred seventy-one thousand, four hundred".