410008421 has 2 divisors, whose sum is σ = 410008422. Its totient is φ = 410008420.

The previous prime is 410008367. The next prime is 410008447. The reversal of 410008421 is 124800014.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 310288225 + 99720196 = 17615^2 + 9986^2 .

It is a cyclic number.

It is not a de Polignac number, because 410008421 - 2¹⁸ = 409746277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 410008393 and 410008402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (410008121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205004210 + 205004211.

It is an arithmetic number, because the mean of its divisors is an integer number (205004211).

Almost surely, 2^410008421 is an apocalyptic number.

It is an amenable number.

410008421 is a deficient number, since it is larger than the sum of its proper divisors (1).

410008421 is an equidigital number, since it uses as much as digits as its factorization.

410008421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 410008421 is about 20248.6646720222. The cubic root of 410008421 is about 742.9009702287.

Adding to 410008421 its reverse (124800014), we get a palindrome (534808435).

The spelling of 410008421 in words is "four hundred ten million, eight thousand, four hundred twenty-one".