427217 has 4 divisors (see below), whose sum is σ = 488256. Its totient is φ = 366180.

The previous prime is 427213. The next prime is 427237. The reversal of 427217 is 712724.

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.

It is a cyclic number.

It is not a de Polignac number, because 427217 - 2² = 427213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 427192 and 427201.

It is not an unprimeable number, because it can be changed into a prime (427213) 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, 30509 + ... + 30522.

It is an arithmetic number, because the mean of its divisors is an integer number (122064).

2⁴²⁷²¹⁷ is an apocalyptic number.

It is an amenable number.

427217 is a deficient number, since it is larger than the sum of its proper divisors (61039).

427217 is an equidigital number, since it uses as much as digits as its factorization.

427217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61038.

The product of its digits is 784, while the sum is 23.

The square root of 427217 is about 653.6183901942. The cubic root of 427217 is about 75.3152361224.

The spelling of 427217 in words is "four hundred twenty-seven thousand, two hundred seventeen", and thus it is an iban number.