47609 has 2 divisors, whose sum is σ = 47610. Its totient is φ = 47608.

The previous prime is 47599. The next prime is 47623. The reversal of 47609 is 90674.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41209 + 6400 = 203^2 + 80^2 .

It is a cyclic number.

It is not a de Polignac number, because 47609 - 2⁸ = 47353 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (47629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23804 + 23805.

It is an arithmetic number, because the mean of its divisors is an integer number (23805).

2⁴⁷⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

47609 is a deficient number, since it is larger than the sum of its proper divisors (1).

47609 is an equidigital number, since it uses as much as digits as its factorization.

47609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 47609 is about 218.1948670340. The cubic root of 47609 is about 36.2434629512.

It can be divided in two parts, 47 and 609, that added together give a palindrome (656).

The spelling of 47609 in words is "forty-seven thousand, six hundred nine".