47487 has 8 divisors (see below), whose sum is σ = 69120. Its totient is φ = 28760.

The previous prime is 47459. The next prime is 47491. The reversal of 47487 is 78474.

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 47487 - 2¹¹ = 45439 is a prime.

47487 is a lucky number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687 + ... + 752.

It is an arithmetic number, because the mean of its divisors is an integer number (8640).

2⁴⁷⁴⁸⁷ is an apocalyptic number.

47487 is a deficient number, since it is larger than the sum of its proper divisors (21633).

47487 is a wasteful number, since it uses less digits than its factorization.

47487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453.

The product of its digits is 6272, while the sum is 30.

The square root of 47487 is about 217.9151210908. The cubic root of 47487 is about 36.2124780198.

It can be divided in two parts, 474 and 87, that added together give a triangular number (561 = T₃₃).

The spelling of 47487 in words is "forty-seven thousand, four hundred eighty-seven".