411856 has 10 divisors (see below), whose sum is σ = 798002. Its totient is φ = 205920.

The previous prime is 411841. The next prime is 411883. The reversal of 411856 is 658114.

It can be written as a sum of positive squares in only one way, i.e., 379456 + 32400 = 616^2 + 180^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 411856.

It is a congruent number.

It is an unprimeable number.

411856 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 (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12855 + ... + 12886.

2⁴¹¹⁸⁵⁶ is an apocalyptic number.

It is an amenable number.

411856 is a deficient number, since it is larger than the sum of its proper divisors (386146).

411856 is a wasteful number, since it uses less digits than its factorization.

411856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25749 (or 25743 counting only the distinct ones).

The product of its digits is 960, while the sum is 25.

The square root of 411856 is about 641.7600797806. The cubic root of 411856 is about 74.4015184490.

The spelling of 411856 in words is "four hundred eleven thousand, eight hundred fifty-six".