47918369 has 2 divisors, whose sum is σ = 47918370. Its totient is φ = 47918368.

The previous prime is 47918357. The next prime is 47918417. The reversal of 47918369 is 96381974.

47918369 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., 26388769 + 21529600 = 5137^2 + 4640^2 .

It is a cyclic number.

It is not a de Polignac number, because 47918369 - 2²⁴ = 31141153 is a prime.

It is a super-2 number, since 2×47918369² = 4592340175240322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47918309) 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, 23959184 + 23959185.

It is an arithmetic number, because the mean of its divisors is an integer number (23959185).

Almost surely, 2^47918369 is an apocalyptic number.

It is an amenable number.

47918369 is a deficient number, since it is larger than the sum of its proper divisors (1).

47918369 is an equidigital number, since it uses as much as digits as its factorization.

47918369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 47.

The square root of 47918369 is about 6922.3095134500. The cubic root of 47918369 is about 363.2179830968.

The spelling of 47918369 in words is "forty-seven million, nine hundred eighteen thousand, three hundred sixty-nine".