847484747 has 4 divisors (see below), whose sum is σ = 850192680. Its totient is φ = 844776816.

The previous prime is 847484723. The next prime is 847484779. The reversal of 847484747 is 747484748.

847484747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 847484747 - 2¹⁶ = 847419211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (847484447) 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, 1353497 + ... + 1354122.

It is an arithmetic number, because the mean of its divisors is an integer number (212548170).

Almost surely, 2^847484747 is an apocalyptic number.

847484747 is a deficient number, since it is larger than the sum of its proper divisors (2707933).

847484747 is a wasteful number, since it uses less digits than its factorization.

847484747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2707932.

The product of its digits is 5619712, while the sum is 53.

The square root of 847484747 is about 29111.5912825115. The cubic root of 847484747 is about 946.3329535390.

Subtracting from 847484747 its reverse (747484748), we obtain a palindrome (99999999).

The spelling of 847484747 in words is "eight hundred forty-seven million, four hundred eighty-four thousand, seven hundred forty-seven".