411881 has 4 divisors (see below), whose sum is σ = 413952. Its totient is φ = 409812.

The previous prime is 411841. The next prime is 411883. The reversal of 411881 is 188114.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 188114 = 2 ⋅94057.

It is a cyclic number.

It is not a de Polignac number, because 411881 - 2¹⁰ = 410857 is a prime.

It is a super-2 number, since 2×411881² = 339291916322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (411883) 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, 701 + ... + 1146.

It is an arithmetic number, because the mean of its divisors is an integer number (103488).

2⁴¹¹⁸⁸¹ is an apocalyptic number.

It is an amenable number.

411881 is a deficient number, since it is larger than the sum of its proper divisors (2071).

411881 is a wasteful number, since it uses less digits than its factorization.

411881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2070.

The product of its digits is 256, while the sum is 23.

The square root of 411881 is about 641.7795571690. The cubic root of 411881 is about 74.4030238298.

Adding to 411881 its reverse (188114), we get a palindrome (599995).

It can be divided in two parts, 4 and 11881, that multiplied together give a square (47524 = 218²).

The spelling of 411881 in words is "four hundred eleven thousand, eight hundred eighty-one".