47048209 has 4 divisors (see below), whose sum is σ = 50667316. Its totient is φ = 43429104.

The previous prime is 47048203. The next prime is 47048251. The reversal of 47048209 is 90284074.

It is a happy number.

47048209 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 can be written as a sum of positive squares in 2 ways, for example, as 14592400 + 32455809 = 3820^2 + 5697^2 .

It is a cyclic number.

It is not a de Polignac number, because 47048209 - 2²³ = 38659601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47048203) 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, 1809534 + ... + 1809559.

It is an arithmetic number, because the mean of its divisors is an integer number (12666829).

Almost surely, 2^47048209 is an apocalyptic number.

It is an amenable number.

47048209 is a deficient number, since it is larger than the sum of its proper divisors (3619107).

47048209 is a wasteful number, since it uses less digits than its factorization.

47048209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3619106.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 47048209 is about 6859.1697019391. The cubic root of 47048209 is about 361.0059544295.

The spelling of 47048209 in words is "forty-seven million, forty-eight thousand, two hundred nine".