47072819 has 2 divisors, whose sum is σ = 47072820. Its totient is φ = 47072818.

The previous prime is 47072807. The next prime is 47072833. The reversal of 47072819 is 91827074.

47072819 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 is a cyclic number.

It is not a de Polignac number, because 47072819 - 2⁸ = 47072563 is a prime.

It is a super-2 number, since 2×47072819² = 4431700577213522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47072119) 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, 23536409 + 23536410.

It is an arithmetic number, because the mean of its divisors is an integer number (23536410).

Almost surely, 2^47072819 is an apocalyptic number.

47072819 is a deficient number, since it is larger than the sum of its proper divisors (1).

47072819 is an equidigital number, since it uses as much as digits as its factorization.

47072819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 47072819 is about 6860.9634163141. The cubic root of 47072819 is about 361.0688885142.

The spelling of 47072819 in words is "forty-seven million, seventy-two thousand, eight hundred nineteen".