47847387 has 16 divisors (see below), whose sum is σ = 73446912. Its totient is φ = 27140160.

The previous prime is 47847323. The next prime is 47847421. The reversal of 47847387 is 78374874.

It is not a de Polignac number, because 47847387 - 2⁶ = 47847323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47847307) 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, 5439 + ... + 11192.

It is an arithmetic number, because the mean of its divisors is an integer number (4590432).

Almost surely, 2^47847387 is an apocalyptic number.

47847387 is a deficient number, since it is larger than the sum of its proper divisors (25599525).

47847387 is a wasteful number, since it uses less digits than its factorization.

47847387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16778.

The product of its digits is 1053696, while the sum is 48.

The square root of 47847387 is about 6917.1805672543. The cubic root of 47847387 is about 363.0385482213.

The spelling of 47847387 in words is "forty-seven million, eight hundred forty-seven thousand, three hundred eighty-seven".