4989943 has 16 divisors (see below), whose sum is σ = 6036480. Its totient is φ = 4034016.

The previous prime is 4989937. The next prime is 4989947. The reversal of 4989943 is 3499894.

It is not a de Polignac number, because 4989943 - 2⁹ = 4989431 is a prime.

It is a super-2 number, since 2×4989943² = 49799062286498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4989893 and 4989902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4989947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9280 + ... + 9802.

It is an arithmetic number, because the mean of its divisors is an integer number (377280).

Almost surely, 2^4989943 is an apocalyptic number.

4989943 is a deficient number, since it is larger than the sum of its proper divisors (1046537).

4989943 is a wasteful number, since it uses less digits than its factorization.

4989943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606.

The product of its digits is 279936, while the sum is 46.

The square root of 4989943 is about 2233.8180319802. The cubic root of 4989943 is about 170.8828695266.

The spelling of 4989943 in words is "four million, nine hundred eighty-nine thousand, nine hundred forty-three".