47856479 has 8 divisors (see below), whose sum is σ = 55278288. Its totient is φ = 40946560.

The previous prime is 47856461. The next prime is 47856511. The reversal of 47856479 is 97465874.

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 47856479 - 2¹² = 47852383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47856379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127772 + ... + 128145.

It is an arithmetic number, because the mean of its divisors is an integer number (6909786).

Almost surely, 2^47856479 is an apocalyptic number.

47856479 is a deficient number, since it is larger than the sum of its proper divisors (7421809).

47856479 is a wasteful number, since it uses less digits than its factorization.

47856479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255945.

The product of its digits is 1693440, while the sum is 50.

The square root of 47856479 is about 6917.8377402191. The cubic root of 47856479 is about 363.0615417266.

The spelling of 47856479 in words is "forty-seven million, eight hundred fifty-six thousand, four hundred seventy-nine".