47809103 has 4 divisors (see below), whose sum is σ = 47972568. Its totient is φ = 47645640.

The previous prime is 47809061. The next prime is 47809129. The reversal of 47809103 is 30190874.

47809103 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 a cyclic number.

It is not a de Polignac number, because 47809103 - 2⁶ = 47809039 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47809103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47809133) 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, 81293 + ... + 81878.

It is an arithmetic number, because the mean of its divisors is an integer number (11993142).

Almost surely, 2^47809103 is an apocalyptic number.

47809103 is a deficient number, since it is larger than the sum of its proper divisors (163465).

47809103 is a wasteful number, since it uses less digits than its factorization.

47809103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163464.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 47809103 is about 6914.4127010181. The cubic root of 47809103 is about 362.9416967025.

Adding to 47809103 its reverse (30190874), we get a palindrome (77999977).

The spelling of 47809103 in words is "forty-seven million, eight hundred nine thousand, one hundred three".