2005411 has 4 divisors (see below), whose sum is σ = 2023272. Its totient is φ = 1987552.

The previous prime is 2005397. The next prime is 2005417. The reversal of 2005411 is 1145002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2005411 - 2¹¹ = 2003363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2005391 and 2005400.

It is not an unprimeable number, because it can be changed into a prime (2005417) 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, 8761 + ... + 8986.

It is an arithmetic number, because the mean of its divisors is an integer number (505818).

2^2005411 is an apocalyptic number.

2005411 is a deficient number, since it is larger than the sum of its proper divisors (17861).

2005411 is a wasteful number, since it uses less digits than its factorization.

2005411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17860.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 2005411 is about 1416.1253475593. The cubic root of 2005411 is about 126.1056265534.

The spelling of 2005411 in words is "two million, five thousand, four hundred eleven".