2839943 has 2 divisors, whose sum is σ = 2839944. Its totient is φ = 2839942.

The previous prime is 2839939. The next prime is 2839951. The reversal of 2839943 is 3499382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2839943 - 2² = 2839939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2839897 and 2839906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2839913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1419971 + 1419972.

It is an arithmetic number, because the mean of its divisors is an integer number (1419972).

2^2839943 is an apocalyptic number.

2839943 is a deficient number, since it is larger than the sum of its proper divisors (1).

2839943 is an equidigital number, since it uses as much as digits as its factorization.

2839943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 38.

The square root of 2839943 is about 1685.2130429118. The cubic root of 2839943 is about 141.6130275979.

The spelling of 2839943 in words is "two million, eight hundred thirty-nine thousand, nine hundred forty-three".