4939847 has 4 divisors (see below), whose sum is σ = 5388936. Its totient is φ = 4490760.

The previous prime is 4939817. The next prime is 4939853. The reversal of 4939847 is 7489394.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4939847 - 2⁶ = 4939783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4939798 and 4939807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4939807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224528 + ... + 224549.

It is an arithmetic number, because the mean of its divisors is an integer number (1347234).

Almost surely, 2^4939847 is an apocalyptic number.

4939847 is a deficient number, since it is larger than the sum of its proper divisors (449089).

4939847 is a wasteful number, since it uses less digits than its factorization.

4939847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449088.

The product of its digits is 217728, while the sum is 44.

The square root of 4939847 is about 2222.5766578456. The cubic root of 4939847 is about 170.3090916525.

The spelling of 4939847 in words is "four million, nine hundred thirty-nine thousand, eight hundred forty-seven".