410621 has 2 divisors, whose sum is σ = 410622. Its totient is φ = 410620.

The previous prime is 410617. The next prime is 410623. The reversal of 410621 is 126014.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 403225 + 7396 = 635^2 + 86^2 .

It is a cyclic number.

It is not a de Polignac number, because 410621 - 2² = 410617 is a prime.

Together with 410623, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 410596 and 410605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (410623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205310 + 205311.

It is an arithmetic number, because the mean of its divisors is an integer number (205311).

2⁴¹⁰⁶²¹ is an apocalyptic number.

It is an amenable number.

410621 is a deficient number, since it is larger than the sum of its proper divisors (1).

410621 is an equidigital number, since it uses as much as digits as its factorization.

410621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 410621 is about 640.7971597940. The cubic root of 410621 is about 74.3270766763.

Adding to 410621 its reverse (126014), we get a palindrome (536635).

The spelling of 410621 in words is "four hundred ten thousand, six hundred twenty-one".