4809943 has 2 divisors, whose sum is σ = 4809944. Its totient is φ = 4809942.

The previous prime is 4809941. The next prime is 4809947. The reversal of 4809943 is 3499084.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4809943 - 2¹ = 4809941 is a prime.

It is a super-3 number, since 3×4809943³ (a number of 21 digits) contains 333 as substring.

Together with 4809941, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4809941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2404971 + 2404972.

It is an arithmetic number, because the mean of its divisors is an integer number (2404972).

Almost surely, 2^4809943 is an apocalyptic number.

4809943 is a deficient number, since it is larger than the sum of its proper divisors (1).

4809943 is an equidigital number, since it uses as much as digits as its factorization.

4809943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 4809943 is about 2193.1582250262. The cubic root of 4809943 is about 168.8029284361.

The spelling of 4809943 in words is "four million, eight hundred nine thousand, nine hundred forty-three".