47849871 has 8 divisors (see below), whose sum is σ = 64517040. Its totient is φ = 31541312.

The previous prime is 47849839. The next prime is 47849873. The reversal of 47849871 is 17894874.

47849871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 47849871 - 2⁵ = 47849839 is a prime.

It is a super-2 number, since 2×47849871² = 4579220309433282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47849871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47849873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89340 + ... + 89873.

It is an arithmetic number, because the mean of its divisors is an integer number (8064630).

Almost surely, 2^47849871 is an apocalyptic number.

47849871 is a deficient number, since it is larger than the sum of its proper divisors (16667169).

47849871 is a wasteful number, since it uses less digits than its factorization.

47849871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179305.

The product of its digits is 451584, while the sum is 48.

The square root of 47849871 is about 6917.3601178484. The cubic root of 47849871 is about 363.0448305020.

The spelling of 47849871 in words is "forty-seven million, eight hundred forty-nine thousand, eight hundred seventy-one".