47164189 has 2 divisors, whose sum is σ = 47164190. Its totient is φ = 47164188.

The previous prime is 47164177. The next prime is 47164193. The reversal of 47164189 is 98146174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40220964 + 6943225 = 6342^2 + 2635^2 .

It is a cyclic number.

It is not a de Polignac number, because 47164189 - 2⁵ = 47164157 is a prime.

It is a super-3 number, since 3×47164189³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47164129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23582094 + 23582095.

It is an arithmetic number, because the mean of its divisors is an integer number (23582095).

Almost surely, 2^47164189 is an apocalyptic number.

It is an amenable number.

47164189 is a deficient number, since it is larger than the sum of its proper divisors (1).

47164189 is an equidigital number, since it uses as much as digits as its factorization.

47164189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 40.

The square root of 47164189 is about 6867.6188741077. The cubic root of 47164189 is about 361.3023533356.

The spelling of 47164189 in words is "forty-seven million, one hundred sixty-four thousand, one hundred eighty-nine".