47884647 has 4 divisors (see below), whose sum is σ = 63846200. Its totient is φ = 31923096.

The previous prime is 47884637. The next prime is 47884663. The reversal of 47884647 is 74648874.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 47884647 - 2⁷ = 47884519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47884596 and 47884605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47884607) 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, 7980772 + ... + 7980777.

It is an arithmetic number, because the mean of its divisors is an integer number (15961550).

Almost surely, 2^47884647 is an apocalyptic number.

47884647 is a deficient number, since it is larger than the sum of its proper divisors (15961553).

47884647 is a wasteful number, since it uses less digits than its factorization.

47884647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15961552.

The product of its digits is 1204224, while the sum is 48.

The square root of 47884647 is about 6919.8733369911. The cubic root of 47884647 is about 363.1327596119.

The spelling of 47884647 in words is "forty-seven million, eight hundred eighty-four thousand, six hundred forty-seven".