47449019 has 2 divisors, whose sum is σ = 47449020. Its totient is φ = 47449018.

The previous prime is 47449009. The next prime is 47449021. The reversal of 47449019 is 91094474.

47449019 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 is a cyclic number.

It is not a de Polignac number, because 47449019 - 2¹² = 47444923 is a prime.

It is a super-2 number, since 2×47449019² = 4502818808124722, which contains 22 as substring.

Together with 47449021, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47449009) 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, 23724509 + 23724510.

It is an arithmetic number, because the mean of its divisors is an integer number (23724510).

Almost surely, 2^47449019 is an apocalyptic number.

47449019 is a deficient number, since it is larger than the sum of its proper divisors (1).

47449019 is an equidigital number, since it uses as much as digits as its factorization.

47449019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 47449019 is about 6888.3248326425. The cubic root of 47449019 is about 362.0282096999.

The spelling of 47449019 in words is "forty-seven million, four hundred forty-nine thousand, nineteen".