411997 has 4 divisors (see below), whose sum is σ = 419040. Its totient is φ = 404956.

The previous prime is 411991. The next prime is 412001. The reversal of 411997 is 799114.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 799114 = 2 ⋅399557.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-411997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (411991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3433 + ... + 3550.

It is an arithmetic number, because the mean of its divisors is an integer number (104760).

2⁴¹¹⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

411997 is a deficient number, since it is larger than the sum of its proper divisors (7043).

411997 is an equidigital number, since it uses as much as digits as its factorization.

411997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7042.

The product of its digits is 2268, while the sum is 31.

The square root of 411997 is about 641.8699245174. The cubic root of 411997 is about 74.4100079997.

The spelling of 411997 in words is "four hundred eleven thousand, nine hundred ninety-seven".