47847561 has 8 divisors (see below), whose sum is σ = 64064640. Its totient is φ = 31764432.

The previous prime is 47847523. The next prime is 47847563. The reversal of 47847561 is 16574874.

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

It is not a de Polignac number, because 47847561 - 2¹¹ = 47845513 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (47847563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32650 + ... + 34083.

It is an arithmetic number, because the mean of its divisors is an integer number (8008080).

Almost surely, 2^47847561 is an apocalyptic number.

It is an amenable number.

47847561 is a deficient number, since it is larger than the sum of its proper divisors (16217079).

47847561 is a wasteful number, since it uses less digits than its factorization.

47847561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66975.

The product of its digits is 188160, while the sum is 42.

The square root of 47847561 is about 6917.1931446216. The cubic root of 47847561 is about 363.0389882915.

The spelling of 47847561 in words is "forty-seven million, eight hundred forty-seven thousand, five hundred sixty-one".