47280437 has 2 divisors, whose sum is σ = 47280438. Its totient is φ = 47280436.

The previous prime is 47280407. The next prime is 47280439. The reversal of 47280437 is 73408274.

47280437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47251876 + 28561 = 6874^2 + 169^2 .

It is a cyclic number.

It is not a de Polignac number, because 47280437 - 2¹⁶ = 47214901 is a prime.

Together with 47280439, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 47280397 and 47280406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47280439) 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, 23640218 + 23640219.

It is an arithmetic number, because the mean of its divisors is an integer number (23640219).

Almost surely, 2^47280437 is an apocalyptic number.

It is an amenable number.

47280437 is a deficient number, since it is larger than the sum of its proper divisors (1).

47280437 is an equidigital number, since it uses as much as digits as its factorization.

47280437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 47280437 is about 6876.0771519814. The cubic root of 47280437 is about 361.5989499482.

The spelling of 47280437 in words is "forty-seven million, two hundred eighty thousand, four hundred thirty-seven".