491741 has 4 divisors (see below), whose sum is σ = 493500. Its totient is φ = 489984.

The previous prime is 491737. The next prime is 491747. The reversal of 491741 is 147194.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 147194 = 2 ⋅73597.

It can be written as a sum of positive squares in 2 ways, for example, as 143641 + 348100 = 379^2 + 590^2 .

It is a cyclic number.

It is not a de Polignac number, because 491741 - 2² = 491737 is a prime.

It is a super-2 number, since 2×491741² = 483618422162, which contains 22 as substring.

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 491741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491747) 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, 356 + ... + 1053.

It is an arithmetic number, because the mean of its divisors is an integer number (123375).

2⁴⁹¹⁷⁴¹ is an apocalyptic number.

It is an amenable number.

491741 is a deficient number, since it is larger than the sum of its proper divisors (1759).

491741 is a wasteful number, since it uses less digits than its factorization.

491741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758.

The product of its digits is 1008, while the sum is 26.

The square root of 491741 is about 701.2424687653. The cubic root of 491741 is about 78.9306125765.

The spelling of 491741 in words is "four hundred ninety-one thousand, seven hundred forty-one".