2669309 has 4 divisors (see below), whose sum is σ = 2673216. Its totient is φ = 2665404.

The previous prime is 2669281. The next prime is 2669321. The reversal of 2669309 is 9039662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2669309 - 2²⁰ = 1620733 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2669339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629 + ... + 2394.

It is an arithmetic number, because the mean of its divisors is an integer number (668304).

2^2669309 is an apocalyptic number.

It is an amenable number.

2669309 is a deficient number, since it is larger than the sum of its proper divisors (3907).

2669309 is an equidigital number, since it uses as much as digits as its factorization.

2669309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906.

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

The square root of 2669309 is about 1633.8020075884. The cubic root of 2669309 is about 138.7180420405.

The spelling of 2669309 in words is "two million, six hundred sixty-nine thousand, three hundred nine".