2069609 has 4 divisors (see below), whose sum is σ = 2159616. Its totient is φ = 1979604.

The previous prime is 2069603. The next prime is 2069629. The reversal of 2069609 is 9069602.

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 2069609 - 2¹⁶ = 2004073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2069603) 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, 44969 + ... + 45014.

It is an arithmetic number, because the mean of its divisors is an integer number (539904).

2^2069609 is an apocalyptic number.

It is an amenable number.

2069609 is a deficient number, since it is larger than the sum of its proper divisors (90007).

2069609 is an equidigital number, since it uses as much as digits as its factorization.

2069609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90006.

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

The square root of 2069609 is about 1438.6135686834. The cubic root of 2069609 is about 127.4371649888.

The spelling of 2069609 in words is "two million, sixty-nine thousand, six hundred nine".