2605469 has 4 divisors (see below), whose sum is σ = 2610144. Its totient is φ = 2600796.

The previous prime is 2605439. The next prime is 2605481. The reversal of 2605469 is 9645062.

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 a de Polignac number, because none of the positive numbers 2^k-2605469 is a prime.

It is a super-2 number, since 2×2605469² = 13576937419922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2605409) 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, 1367 + ... + 2660.

It is an arithmetic number, because the mean of its divisors is an integer number (652536).

2^2605469 is an apocalyptic number.

It is an amenable number.

2605469 is a deficient number, since it is larger than the sum of its proper divisors (4675).

2605469 is an equidigital number, since it uses as much as digits as its factorization.

2605469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4674.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 2605469 is about 1614.1465237084. The cubic root of 2605469 is about 137.6032326681.

The spelling of 2605469 in words is "two million, six hundred five thousand, four hundred sixty-nine".