5209943 has 2 divisors, whose sum is σ = 5209944. Its totient is φ = 5209942.

The previous prime is 5209913. The next prime is 5209951. The reversal of 5209943 is 3499025.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5209943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5209913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2604971 + 2604972.

It is an arithmetic number, because the mean of its divisors is an integer number (2604972).

Almost surely, 2^5209943 is an apocalyptic number.

5209943 is a deficient number, since it is larger than the sum of its proper divisors (1).

5209943 is an equidigital number, since it uses as much as digits as its factorization.

5209943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 5209943 is about 2282.5299559918. The cubic root of 5209943 is about 173.3581740368.

The spelling of 5209943 in words is "five million, two hundred nine thousand, nine hundred forty-three".