2609069 has 2 divisors, whose sum is σ = 2609070. Its totient is φ = 2609068.

The previous prime is 2609059. The next prime is 2609071. The reversal of 2609069 is 9609062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1729225 + 879844 = 1315^2 + 938^2 .

It is a cyclic number.

It is not a de Polignac number, because 2609069 - 2⁸ = 2608813 is a prime.

It is a super-2 number, since 2×2609069² = 13614482093522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2609071, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2609029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1304534 + 1304535.

It is an arithmetic number, because the mean of its divisors is an integer number (1304535).

2^2609069 is an apocalyptic number.

It is an amenable number.

2609069 is a deficient number, since it is larger than the sum of its proper divisors (1).

2609069 is an equidigital number, since it uses as much as digits as its factorization.

2609069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 2609069 is about 1615.2612791744. The cubic root of 2609069 is about 137.6665793771. Note that the first 3 decimals are identical.

The spelling of 2609069 in words is "two million, six hundred nine thousand, sixty-nine".