411646 has 4 divisors (see below), whose sum is σ = 617472. Its totient is φ = 205822.

The previous prime is 411641. The next prime is 411667. The reversal of 411646 is 646114.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (411641) by changing a digit.

411646 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102910 + ... + 102913.

It is an arithmetic number, because the mean of its divisors is an integer number (154368).

2⁴¹¹⁶⁴⁶ is an apocalyptic number.

411646 is a deficient number, since it is larger than the sum of its proper divisors (205826).

411646 is a wasteful number, since it uses less digits than its factorization.

411646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205825.

The product of its digits is 576, while the sum is 22.

The square root of 411646 is about 641.5964463742. The cubic root of 411646 is about 74.3888708447.

The spelling of 411646 in words is "four hundred eleven thousand, six hundred forty-six".