47587247 has 4 divisors (see below), whose sum is σ = 47678760. Its totient is φ = 47495736.

The previous prime is 47587193. The next prime is 47587249. The reversal of 47587247 is 74278574.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74278574 = 2 ⋅37139287.

It is a cyclic number.

It is not a de Polignac number, because 47587247 - 2¹⁰ = 47586223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47587198 and 47587207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47587249) 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 3 ways as a sum of consecutive naturals, for example, 44972 + ... + 46017.

It is an arithmetic number, because the mean of its divisors is an integer number (11919690).

Almost surely, 2^47587247 is an apocalyptic number.

47587247 is a deficient number, since it is larger than the sum of its proper divisors (91513).

47587247 is an equidigital number, since it uses as much as digits as its factorization.

47587247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91512.

The product of its digits is 439040, while the sum is 44.

The square root of 47587247 is about 6898.3510348488. The cubic root of 47587247 is about 362.3794211724.

The spelling of 47587247 in words is "forty-seven million, five hundred eighty-seven thousand, two hundred forty-seven".