2040917 has 2 divisors, whose sum is σ = 2040918. Its totient is φ = 2040916.

The previous prime is 2040851. The next prime is 2040919. The reversal of 2040917 is 7190402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1168561 + 872356 = 1081^2 + 934^2 .

It is a cyclic number.

It is not a de Polignac number, because 2040917 - 2¹⁶ = 1975381 is a prime.

Together with 2040919, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2040892 and 2040901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2040919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020458 + 1020459.

It is an arithmetic number, because the mean of its divisors is an integer number (1020459).

2^2040917 is an apocalyptic number.

It is an amenable number.

2040917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040917 is an equidigital number, since it uses as much as digits as its factorization.

2040917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 2040917 is about 1428.6066638512. The cubic root of 2040917 is about 126.8455145149.

The spelling of 2040917 in words is "two million, forty thousand, nine hundred seventeen".