2180417 has 2 divisors, whose sum is σ = 2180418. Its totient is φ = 2180416.

The previous prime is 2180393. The next prime is 2180467. The reversal of 2180417 is 7140812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1825201 + 355216 = 1351^2 + 596^2 .

It is a cyclic number.

It is not a de Polignac number, because 2180417 - 2¹⁶ = 2114881 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2180392 and 2180401.

It is not a weakly prime, because it can be changed into another prime (2180467) 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 as a sum of consecutive naturals, namely, 1090208 + 1090209.

It is an arithmetic number, because the mean of its divisors is an integer number (1090209).

2^2180417 is an apocalyptic number.

It is an amenable number.

2180417 is a deficient number, since it is larger than the sum of its proper divisors (1).

2180417 is an equidigital number, since it uses as much as digits as its factorization.

2180417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 2180417 is about 1476.6235132897. The cubic root of 2180417 is about 129.6720927262.

The spelling of 2180417 in words is "two million, one hundred eighty thousand, four hundred seventeen".