47117927 has 2 divisors, whose sum is σ = 47117928. Its totient is φ = 47117926.

The previous prime is 47117911. The next prime is 47117947. The reversal of 47117927 is 72971174.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47117927 - 2⁴ = 47117911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47117947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23558963 + 23558964.

It is an arithmetic number, because the mean of its divisors is an integer number (23558964).

Almost surely, 2^47117927 is an apocalyptic number.

47117927 is a deficient number, since it is larger than the sum of its proper divisors (1).

47117927 is an equidigital number, since it uses as much as digits as its factorization.

47117927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24696, while the sum is 38.

The square root of 47117927 is about 6864.2499226063. The cubic root of 47117927 is about 361.1841843198.

The spelling of 47117927 in words is "forty-seven million, one hundred seventeen thousand, nine hundred twenty-seven".