2893645 has 4 divisors (see below), whose sum is σ = 3472380. Its totient is φ = 2314912.

The previous prime is 2893637. The next prime is 2893651. The reversal of 2893645 is 5463982.

2893645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1929321 + 964324 = 1389^2 + 982^2 .

It is a cyclic number.

It is not a de Polignac number, because 2893645 - 2³ = 2893637 is a prime.

It is a super-3 number, since 3×2893645³ = 72687043355292933375, which contains 333 as substring.

It is a d-powerful number, because it can be written as 2¹¹ + 8⁷ + 9³ + 3¹² + 6 + 4⁹ + 5³ .

2893645 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289360 + ... + 289369.

It is an arithmetic number, because the mean of its divisors is an integer number (868095).

2^2893645 is an apocalyptic number.

It is an amenable number.

2893645 is a deficient number, since it is larger than the sum of its proper divisors (578735).

2893645 is an equidigital number, since it uses as much as digits as its factorization.

2893645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578734.

The product of its digits is 51840, while the sum is 37.

The square root of 2893645 is about 1701.0717210041. The cubic root of 2893645 is about 142.5000718169.

The spelling of 2893645 in words is "two million, eight hundred ninety-three thousand, six hundred forty-five".