2683645 has 4 divisors (see below), whose sum is σ = 3220380. Its totient is φ = 2146912.

The previous prime is 2683621. The next prime is 2683649. The reversal of 2683645 is 5463862.

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 1153476 + 1530169 = 1074^2 + 1237^2 .

It is a cyclic number.

It is not a de Polignac number, because 2683645 - 2⁵ = 2683613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2683645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2683649) 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, 268360 + ... + 268369.

It is an arithmetic number, because the mean of its divisors is an integer number (805095).

2^2683645 is an apocalyptic number.

It is an amenable number.

2683645 is a deficient number, since it is larger than the sum of its proper divisors (536735).

2683645 is an equidigital number, since it uses as much as digits as its factorization.

2683645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536734.

The product of its digits is 34560, while the sum is 34.

The square root of 2683645 is about 1638.1834451611. The cubic root of 2683645 is about 138.9659354443.

The spelling of 2683645 in words is "two million, six hundred eighty-three thousand, six hundred forty-five".