411621 has 16 divisors (see below), whose sum is σ = 664704. Its totient is φ = 221184.

The previous prime is 411617. The next prime is 411637. The reversal of 411621 is 126114.

It is not a de Polignac number, because 411621 - 2² = 411617 is a prime.

It is a Curzon number.

411621 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 411621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (411611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220 + ... + 933.

It is an arithmetic number, because the mean of its divisors is an integer number (41544).

2⁴¹¹⁶²¹ is an apocalyptic number.

It is an amenable number.

411621 is a deficient number, since it is larger than the sum of its proper divisors (253083).

411621 is a wasteful number, since it uses less digits than its factorization.

411621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180.

The product of its digits is 48, while the sum is 15.

The square root of 411621 is about 641.5769634268. The cubic root of 411621 is about 74.3873648910.

Adding to 411621 its reverse (126114), we get a palindrome (537735).

It can be divided in two parts, 4116 and 21, that multiplied together give a square (86436 = 294²).

The spelling of 411621 in words is "four hundred eleven thousand, six hundred twenty-one".