412017217 has 4 divisors (see below), whose sum is σ = 412935300. Its totient is φ = 411099136.

The previous prime is 412017209. The next prime is 412017227. The reversal of 412017217 is 712710214.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 200052736 + 211964481 = 14144^2 + 14559^2 .

It is a cyclic number.

It is not a de Polignac number, because 412017217 - 2³ = 412017209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 412017191 and 412017200.

It is not an unprimeable number, because it can be changed into a prime (412017227) 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, 458368 + ... + 459265.

It is an arithmetic number, because the mean of its divisors is an integer number (103233825).

Almost surely, 2^412017217 is an apocalyptic number.

It is an amenable number.

412017217 is a deficient number, since it is larger than the sum of its proper divisors (918083).

412017217 is an equidigital number, since it uses as much as digits as its factorization.

412017217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918082.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 412017217 is about 20298.2072361083. The cubic root of 412017217 is about 744.1122509796.

The spelling of 412017217 in words is "four hundred twelve million, seventeen thousand, two hundred seventeen".