2270217 has 4 divisors (see below), whose sum is σ = 3026960. Its totient is φ = 1513476.

The previous prime is 2270201. The next prime is 2270239. The reversal of 2270217 is 7120722.

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 not a de Polignac number, because 2270217 - 2⁴ = 2270201 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2270193 and 2270202.

It is not an unprimeable number, because it can be changed into a prime (2270267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378367 + ... + 378372.

It is an arithmetic number, because the mean of its divisors is an integer number (756740).

2^2270217 is an apocalyptic number.

It is an amenable number.

2270217 is a deficient number, since it is larger than the sum of its proper divisors (756743).

2270217 is an equidigital number, since it uses as much as digits as its factorization.

2270217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756742.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 2270217 is about 1506.7239295903. The cubic root of 2270217 is about 131.4283706339.

Adding to 2270217 its reverse (7120722), we get a palindrome (9390939).

The spelling of 2270217 in words is "two million, two hundred seventy thousand, two hundred seventeen".