4947789 has 16 divisors (see below), whose sum is σ = 8225280. Its totient is φ = 2570160.

The previous prime is 4947779. The next prime is 4947791. The reversal of 4947789 is 9877494.

It is a happy number.

It is not a de Polignac number, because 4947789 - 2¹¹ = 4945741 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4947779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10479 + ... + 10940.

It is an arithmetic number, because the mean of its divisors is an integer number (514080).

Almost surely, 2^4947789 is an apocalyptic number.

It is an amenable number.

4947789 is a deficient number, since it is larger than the sum of its proper divisors (3277491).

4947789 is a wasteful number, since it uses less digits than its factorization.

4947789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21440.

The product of its digits is 508032, while the sum is 48.

The square root of 4947789 is about 2224.3626053321. The cubic root of 4947789 is about 170.4003138150.

The spelling of 4947789 in words is "four million, nine hundred forty-seven thousand, seven hundred eighty-nine".