871741 has 4 divisors (see below), whose sum is σ = 938812. Its totient is φ = 804672.

The previous prime is 871727. The next prime is 871763. The reversal of 871741 is 147178.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 147178 = 2 ⋅73589.

It can be written as a sum of positive squares in 2 ways, for example, as 476100 + 395641 = 690^2 + 629^2 .

It is a cyclic number.

It is not a de Polignac number, because 871741 - 2⁷ = 871613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871771) 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, 33516 + ... + 33541.

It is an arithmetic number, because the mean of its divisors is an integer number (234703).

2⁸⁷¹⁷⁴¹ is an apocalyptic number.

It is an amenable number.

871741 is a deficient number, since it is larger than the sum of its proper divisors (67071).

871741 is a wasteful number, since it uses less digits than its factorization.

871741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67070.

The product of its digits is 1568, while the sum is 28.

The square root of 871741 is about 933.6707128319. The cubic root of 871741 is about 95.5276639245.

The spelling of 871741 in words is "eight hundred seventy-one thousand, seven hundred forty-one".