47847287 has 16 divisors (see below), whose sum is σ = 50676192. Its totient is φ = 45127680.

The previous prime is 47847281. The next prime is 47847307. The reversal of 47847287 is 78274874.

It is a cyclic number.

It is not a de Polignac number, because 47847287 - 2¹⁴ = 47830903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47847281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210668 + ... + 210894.

It is an arithmetic number, because the mean of its divisors is an integer number (3167262).

Almost surely, 2^47847287 is an apocalyptic number.

47847287 is a deficient number, since it is larger than the sum of its proper divisors (2828905).

47847287 is a wasteful number, since it uses less digits than its factorization.

47847287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418.

The product of its digits is 702464, while the sum is 47.

The square root of 47847287 is about 6917.1733388719. The cubic root of 47847287 is about 363.0382953069.

The spelling of 47847287 in words is "forty-seven million, eight hundred forty-seven thousand, two hundred eighty-seven".