47681219 has 2 divisors, whose sum is σ = 47681220. Its totient is φ = 47681218.

The previous prime is 47681189. The next prime is 47681239. The reversal of 47681219 is 91218674.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47681219 - 2¹⁶ = 47615683 is a prime.

It is a super-2 number, since 2×47681219² = 4546997290651922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47681239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23840609 + 23840610.

It is an arithmetic number, because the mean of its divisors is an integer number (23840610).

Almost surely, 2^47681219 is an apocalyptic number.

47681219 is a deficient number, since it is larger than the sum of its proper divisors (1).

47681219 is an equidigital number, since it uses as much as digits as its factorization.

47681219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 38.

The square root of 47681219 is about 6905.1588685562. The cubic root of 47681219 is about 362.6177982598.

The spelling of 47681219 in words is "forty-seven million, six hundred eighty-one thousand, two hundred nineteen".