47947679 has 8 divisors (see below), whose sum is σ = 52407600. Its totient is φ = 43598016.

The previous prime is 47947631. The next prime is 47947693. The reversal of 47947679 is 97674974.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47947679 - 2⁸ = 47947423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47947679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47947609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26654 + ... + 28395.

It is an arithmetic number, because the mean of its divisors is an integer number (6550950).

Almost surely, 2^47947679 is an apocalyptic number.

47947679 is a deficient number, since it is larger than the sum of its proper divisors (4459921).

47947679 is a wasteful number, since it uses less digits than its factorization.

47947679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55129.

The product of its digits is 2667168, while the sum is 53.

The square root of 47947679 is about 6924.4262578209. The cubic root of 47947679 is about 363.2920239393.

The spelling of 47947679 in words is "forty-seven million, nine hundred forty-seven thousand, six hundred seventy-nine".