47549847 has 16 divisors (see below), whose sum is σ = 65761280. Its totient is φ = 30536352.

The previous prime is 47549839. The next prime is 47549849. The reversal of 47549847 is 74894574.

It is not a de Polignac number, because 47549847 - 2³ = 47549839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47549796 and 47549805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47549849) 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, 9354 + ... + 13512.

It is an arithmetic number, because the mean of its divisors is an integer number (4110080).

Almost surely, 2^47549847 is an apocalyptic number.

47549847 is a deficient number, since it is larger than the sum of its proper divisors (18211433).

47549847 is a wasteful number, since it uses less digits than its factorization.

47549847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302.

The product of its digits is 1128960, while the sum is 48.

The square root of 47549847 is about 6895.6397092656. The cubic root of 47549847 is about 362.2844619603.

The spelling of 47549847 in words is "forty-seven million, five hundred forty-nine thousand, eight hundred forty-seven".