47838829 has 2 divisors, whose sum is σ = 47838830. Its totient is φ = 47838828.

The previous prime is 47838803. The next prime is 47838839. The reversal of 47838829 is 92883874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44863204 + 2975625 = 6698^2 + 1725^2 .

It is a cyclic number.

It is not a de Polignac number, because 47838829 - 2¹¹ = 47836781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47838839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23919414 + 23919415.

It is an arithmetic number, because the mean of its divisors is an integer number (23919415).

Almost surely, 2^47838829 is an apocalyptic number.

It is an amenable number.

47838829 is a deficient number, since it is larger than the sum of its proper divisors (1).

47838829 is an equidigital number, since it uses as much as digits as its factorization.

47838829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 49.

The square root of 47838829 is about 6916.5619349501. The cubic root of 47838829 is about 363.0169025311.

The spelling of 47838829 in words is "forty-seven million, eight hundred thirty-eight thousand, eight hundred twenty-nine".