411997217 has 2 divisors, whose sum is σ = 411997218. Its totient is φ = 411997216.

The previous prime is 411997213. The next prime is 411997231. The reversal of 411997217 is 712799114.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 265005841 + 146991376 = 16279^2 + 12124^2 .

It is a cyclic number.

It is not a de Polignac number, because 411997217 - 2² = 411997213 is a prime.

It is not a weakly prime, because it can be changed into another prime (411997213) 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 as a sum of consecutive naturals, namely, 205998608 + 205998609.

It is an arithmetic number, because the mean of its divisors is an integer number (205998609).

Almost surely, 2^411997217 is an apocalyptic number.

It is an amenable number.

411997217 is a deficient number, since it is larger than the sum of its proper divisors (1).

411997217 is an equidigital number, since it uses as much as digits as its factorization.

411997217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 41.

The square root of 411997217 is about 20297.7145757841. The cubic root of 411997217 is about 744.1002106366.

It can be divided in two parts, 411997 and 217, that added together give a palindrome (412214).

The spelling of 411997217 in words is "four hundred eleven million, nine hundred ninety-seven thousand, two hundred seventeen".