2309669 has 2 divisors, whose sum is σ = 2309670. Its totient is φ = 2309668.

The previous prime is 2309663. The next prime is 2309677. The reversal of 2309669 is 9669032.

2309669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2137444 + 172225 = 1462^2 + 415^2 .

It is a cyclic number.

It is not a de Polignac number, because 2309669 - 2⁸ = 2309413 is a prime.

It is a super-2 number, since 2×2309669² = 10669141779122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2309663) 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, 1154834 + 1154835.

It is an arithmetic number, because the mean of its divisors is an integer number (1154835).

2^2309669 is an apocalyptic number.

It is an amenable number.

2309669 is a deficient number, since it is larger than the sum of its proper divisors (1).

2309669 is an equidigital number, since it uses as much as digits as its factorization.

2309669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 2309669 is about 1519.7595204505. The cubic root of 2309669 is about 132.1853266115.

The spelling of 2309669 in words is "two million, three hundred nine thousand, six hundred sixty-nine".