2869609 has 4 divisors (see below), whose sum is σ = 2947204. Its totient is φ = 2792016.

The previous prime is 2869567. The next prime is 2869613. The reversal of 2869609 is 9069682.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1570009 + 1299600 = 1253^2 + 1140^2 .

It is a cyclic number.

It is not a de Polignac number, because 2869609 - 2¹¹ = 2867561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2869649) 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, 38742 + ... + 38815.

It is an arithmetic number, because the mean of its divisors is an integer number (736801).

2^2869609 is an apocalyptic number.

It is an amenable number.

2869609 is a deficient number, since it is larger than the sum of its proper divisors (77595).

2869609 is an equidigital number, since it uses as much as digits as its factorization.

2869609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77594.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 2869609 is about 1693.9920306778. The cubic root of 2869609 is about 142.1044163572.

The spelling of 2869609 in words is "two million, eight hundred sixty-nine thousand, six hundred nine".