47177147 has 2 divisors, whose sum is σ = 47177148. Its totient is φ = 47177146.

The previous prime is 47177111. The next prime is 47177153. The reversal of 47177147 is 74177174.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47177147 - 2⁶ = 47177083 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47177147.

It is not a weakly prime, because it can be changed into another prime (47177197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23588573 + 23588574.

It is an arithmetic number, because the mean of its divisors is an integer number (23588574).

Almost surely, 2^47177147 is an apocalyptic number.

47177147 is a deficient number, since it is larger than the sum of its proper divisors (1).

47177147 is an equidigital number, since it uses as much as digits as its factorization.

47177147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38416, while the sum is 38.

The square root of 47177147 is about 6868.5622221830. The cubic root of 47177147 is about 361.3354386581.

The spelling of 47177147 in words is "forty-seven million, one hundred seventy-seven thousand, one hundred forty-seven".