47842429 has 2 divisors, whose sum is σ = 47842430. Its totient is φ = 47842428.

The previous prime is 47842423. The next prime is 47842447. The reversal of 47842429 is 92424874.

47842429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27321529 + 20520900 = 5227^2 + 4530^2 .

It is a cyclic number.

It is not a de Polignac number, because 47842429 - 2⁵ = 47842397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47842391 and 47842400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47842423) 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 as a sum of consecutive naturals, namely, 23921214 + 23921215.

It is an arithmetic number, because the mean of its divisors is an integer number (23921215).

Almost surely, 2^47842429 is an apocalyptic number.

It is an amenable number.

47842429 is a deficient number, since it is larger than the sum of its proper divisors (1).

47842429 is an equidigital number, since it uses as much as digits as its factorization.

47842429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 40.

The square root of 47842429 is about 6916.8221749587. The cubic root of 47842429 is about 363.0260083008.

The spelling of 47842429 in words is "forty-seven million, eight hundred forty-two thousand, four hundred twenty-nine".