2117497 has 2 divisors, whose sum is σ = 2117498. Its totient is φ = 2117496.

The previous prime is 2117477. The next prime is 2117501. The reversal of 2117497 is 7947112.

2117497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1731856 + 385641 = 1316^2 + 621^2 .

It is a cyclic number.

It is not a de Polignac number, because 2117497 - 2⁷ = 2117369 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2117447) 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, 1058748 + 1058749.

It is an arithmetic number, because the mean of its divisors is an integer number (1058749).

2^2117497 is an apocalyptic number.

It is an amenable number.

2117497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2117497 is an equidigital number, since it uses as much as digits as its factorization.

2117497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3528, while the sum is 31.

The square root of 2117497 is about 1455.1621902730. The cubic root of 2117497 is about 128.4125887380.

The spelling of 2117497 in words is "two million, one hundred seventeen thousand, four hundred ninety-seven".