411909 has 4 divisors (see below), whose sum is σ = 549216. Its totient is φ = 274604.

The previous prime is 411883. The next prime is 411919. The reversal of 411909 is 909114.

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.

It is a cyclic number.

It is not a de Polignac number, because 411909 - 2¹¹ = 409861 is a prime.

It is a D-number.

It is a Curzon number.

411909 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (411919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68649 + ... + 68654.

It is an arithmetic number, because the mean of its divisors is an integer number (137304).

2⁴¹¹⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

411909 is a deficient number, since it is larger than the sum of its proper divisors (137307).

411909 is a wasteful number, since it uses less digits than its factorization.

411909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137306.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 411909 is about 641.8013711422. The cubic root of 411909 is about 74.4047097839.

The spelling of 411909 in words is "four hundred eleven thousand, nine hundred nine".