47643229 has 2 divisors, whose sum is σ = 47643230. Its totient is φ = 47643228.

The previous prime is 47643227. The next prime is 47643313. The reversal of 47643229 is 92234674.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47637604 + 5625 = 6902^2 + 75^2 .

It is a cyclic number.

It is not a de Polignac number, because 47643229 - 2¹ = 47643227 is a prime.

Together with 47643227, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47643227) 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, 23821614 + 23821615.

It is an arithmetic number, because the mean of its divisors is an integer number (23821615).

Almost surely, 2^47643229 is an apocalyptic number.

It is an amenable number.

47643229 is a deficient number, since it is larger than the sum of its proper divisors (1).

47643229 is an equidigital number, since it uses as much as digits as its factorization.

47643229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 37.

The square root of 47643229 is about 6902.4074785541. The cubic root of 47643229 is about 362.5214674564.

The spelling of 47643229 in words is "forty-seven million, six hundred forty-three thousand, two hundred twenty-nine".