2061217 has 2 divisors, whose sum is σ = 2061218. Its totient is φ = 2061216.

The previous prime is 2061209. The next prime is 2061239. The reversal of 2061217 is 7121602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2047761 + 13456 = 1431^2 + 116^2 .

It is a cyclic number.

It is not a de Polignac number, because 2061217 - 2³ = 2061209 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2061194 and 2061203.

It is not a weakly prime, because it can be changed into another prime (2061247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1030608 + 1030609.

It is an arithmetic number, because the mean of its divisors is an integer number (1030609).

2^2061217 is an apocalyptic number.

It is an amenable number.

2061217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2061217 is an equidigital number, since it uses as much as digits as its factorization.

2061217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 2061217 is about 1435.6939088817. The cubic root of 2061217 is about 127.2646845103.

Adding to 2061217 its reverse (7121602), we get a palindrome (9182819).

It can be divided in two parts, 2061 and 217, that added together give a triangular number (2278 = T₆₇).

The spelling of 2061217 in words is "two million, sixty-one thousand, two hundred seventeen".