2745965 has 4 divisors (see below), whose sum is σ = 3295164. Its totient is φ = 2196768.

The previous prime is 2745931. The next prime is 2745971. The reversal of 2745965 is 5695472.

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 769129 + 1976836 = 877^2 + 1406^2 .

It is a cyclic number.

It is not a de Polignac number, because 2745965 - 2²⁰ = 1697389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274592 + ... + 274601.

It is an arithmetic number, because the mean of its divisors is an integer number (823791).

2^2745965 is an apocalyptic number.

It is an amenable number.

2745965 is a deficient number, since it is larger than the sum of its proper divisors (549199).

2745965 is an equidigital number, since it uses as much as digits as its factorization.

2745965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549198.

The product of its digits is 75600, while the sum is 38.

The square root of 2745965 is about 1657.0953503043. The cubic root of 2745965 is about 140.0334103935.

The spelling of 2745965 in words is "two million, seven hundred forty-five thousand, nine hundred sixty-five".