47909163 has 4 divisors (see below), whose sum is σ = 63878888. Its totient is φ = 31939440.

The previous prime is 47909137. The next prime is 47909201. The reversal of 47909163 is 36190974.

47909163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 47909163 - 2¹⁷ = 47778091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47909263) 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 3 ways as a sum of consecutive naturals, for example, 7984858 + ... + 7984863.

It is an arithmetic number, because the mean of its divisors is an integer number (15969722).

Almost surely, 2^47909163 is an apocalyptic number.

47909163 is a deficient number, since it is larger than the sum of its proper divisors (15969725).

47909163 is a wasteful number, since it uses less digits than its factorization.

47909163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15969724.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 47909163 is about 6921.6445300232. The cubic root of 47909163 is about 363.1947213221.

The spelling of 47909163 in words is "forty-seven million, nine hundred nine thousand, one hundred sixty-three".