4999847 has 4 divisors (see below), whose sum is σ = 5135016. Its totient is φ = 4864680.

The previous prime is 4999823. The next prime is 4999849. The reversal of 4999847 is 7489994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7489994 = 2 ⋅3744997.

It is a cyclic number.

It is not a de Polignac number, because 4999847 - 2⁶ = 4999783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4999795 and 4999804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4999849) 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, 67529 + ... + 67602.

It is an arithmetic number, because the mean of its divisors is an integer number (1283754).

Almost surely, 2^4999847 is an apocalyptic number.

4999847 is a deficient number, since it is larger than the sum of its proper divisors (135169).

4999847 is a wasteful number, since it uses less digits than its factorization.

4999847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135168.

The product of its digits is 653184, while the sum is 50.

The square root of 4999847 is about 2236.0337653980. The cubic root of 4999847 is about 170.9958504744.

The spelling of 4999847 in words is "four million, nine hundred ninety-nine thousand, eight hundred forty-seven".