2683643 has 4 divisors (see below), whose sum is σ = 2688528. Its totient is φ = 2678760.

The previous prime is 2683621. The next prime is 2683649. The reversal of 2683643 is 3463862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3463862 = 2 ⋅1731931.

It is a cyclic number.

It is not a de Polignac number, because 2683643 - 2¹⁶ = 2618107 is a prime.

It is a Duffinian 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, 1496 + ... + 2757.

It is an arithmetic number, because the mean of its divisors is an integer number (672132).

2^2683643 is an apocalyptic number.

2683643 is a deficient number, since it is larger than the sum of its proper divisors (4885).

2683643 is an equidigital number, since it uses as much as digits as its factorization.

2683643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884.

The product of its digits is 20736, while the sum is 32.

The square root of 2683643 is about 1638.1828347288. The cubic root of 2683643 is about 138.9659009226.

The spelling of 2683643 in words is "two million, six hundred eighty-three thousand, six hundred forty-three".