2174609 has 2 divisors, whose sum is σ = 2174610. Its totient is φ = 2174608.

The previous prime is 2174603. The next prime is 2174611. The reversal of 2174609 is 9064712.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1373584 + 801025 = 1172^2 + 895^2 .

It is a cyclic number.

It is not a de Polignac number, because 2174609 - 2⁴ = 2174593 is a prime.

Together with 2174611, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is equal to p₁₆₀₉₄₉ and since 2174609 and 160949 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2174603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1087304 + 1087305.

It is an arithmetic number, because the mean of its divisors is an integer number (1087305).

2^2174609 is an apocalyptic number.

It is an amenable number.

2174609 is a deficient number, since it is larger than the sum of its proper divisors (1).

2174609 is an equidigital number, since it uses as much as digits as its factorization.

2174609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 2174609 is about 1474.6555530021. The cubic root of 2174609 is about 129.5568540329.

The spelling of 2174609 in words is "two million, one hundred seventy-four thousand, six hundred nine".