47839289 has 2 divisors, whose sum is σ = 47839290. Its totient is φ = 47839288.

The previous prime is 47839271. The next prime is 47839301. The reversal of 47839289 is 98293874.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47059600 + 779689 = 6860^2 + 883^2 .

It is a cyclic number.

It is not a de Polignac number, because 47839289 - 2²⁰ = 46790713 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 (47839219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23919644 + 23919645.

It is an arithmetic number, because the mean of its divisors is an integer number (23919645).

Almost surely, 2^47839289 is an apocalyptic number.

It is an amenable number.

47839289 is a deficient number, since it is larger than the sum of its proper divisors (1).

47839289 is an equidigital number, since it uses as much as digits as its factorization.

47839289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 50.

The square root of 47839289 is about 6916.5951883857. The cubic root of 47839289 is about 363.0180660716.

The spelling of 47839289 in words is "forty-seven million, eight hundred thirty-nine thousand, two hundred eighty-nine".