47974189 has 2 divisors, whose sum is σ = 47974190. Its totient is φ = 47974188.

The previous prime is 47974181. The next prime is 47974193. The reversal of 47974189 is 98147974.

47974189 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., 45118089 + 2856100 = 6717^2 + 1690^2 .

It is a cyclic number.

It is not a de Polignac number, because 47974189 - 2³ = 47974181 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47974181) 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, 23987094 + 23987095.

It is an arithmetic number, because the mean of its divisors is an integer number (23987095).

Almost surely, 2^47974189 is an apocalyptic number.

It is an amenable number.

47974189 is a deficient number, since it is larger than the sum of its proper divisors (1).

47974189 is an equidigital number, since it uses as much as digits as its factorization.

47974189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 49.

The square root of 47974189 is about 6926.3402313199. The cubic root of 47974189 is about 363.3589656373.

The spelling of 47974189 in words is "forty-seven million, nine hundred seventy-four thousand, one hundred eighty-nine".