2670565 has 4 divisors (see below), whose sum is σ = 3204684. Its totient is φ = 2136448.

The previous prime is 2670539. The next prime is 2670571. The reversal of 2670565 is 5650762.

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 804609 + 1865956 = 897^2 + 1366^2 .

It is a cyclic number.

It is not a de Polignac number, because 2670565 - 2⁵ = 2670533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267052 + ... + 267061.

It is an arithmetic number, because the mean of its divisors is an integer number (801171).

2^2670565 is an apocalyptic number.

It is an amenable number.

2670565 is a deficient number, since it is larger than the sum of its proper divisors (534119).

2670565 is an equidigital number, since it uses as much as digits as its factorization.

2670565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534118.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 2670565 is about 1634.1863418839. The cubic root of 2670565 is about 138.7397958029.

The spelling of 2670565 in words is "two million, six hundred seventy thousand, five hundred sixty-five".