2838643 has 4 divisors (see below), whose sum is σ = 3005640. Its totient is φ = 2671648.

The previous prime is 2838631. The next prime is 2838697. The reversal of 2838643 is 3468382.

2838643 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 is a cyclic number.

It is not a de Polignac number, because 2838643 - 2⁵ = 2838611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2838599 and 2838608.

It is not an unprimeable number, because it can be changed into a prime (2838443) by changing a digit.

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, 83473 + ... + 83506.

It is an arithmetic number, because the mean of its divisors is an integer number (751410).

2^2838643 is an apocalyptic number.

2838643 is a deficient number, since it is larger than the sum of its proper divisors (166997).

2838643 is a wasteful number, since it uses less digits than its factorization.

2838643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166996.

The product of its digits is 27648, while the sum is 34.

The square root of 2838643 is about 1684.8272908521. The cubic root of 2838643 is about 141.5914162448.

It can be divided in two parts, 2838 and 643, that added together give a square (3481 = 59²).

The spelling of 2838643 in words is "two million, eight hundred thirty-eight thousand, six hundred forty-three".