8166047 has 2 divisors, whose sum is σ = 8166048.
Its totient is φ = 8166046.
The previous prime is 8166031. The next prime is 8166049. The reversal of 8166047 is 7406618.
8166047 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 8166047 - 24 = 8166031 is a prime.
Together with 8166049, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (8166049) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4083023 + 4083024.
It is an arithmetic number, because the mean of its divisors is an integer number (4083024).
Almost surely, 28166047 is an apocalyptic number.
8166047 is a deficient number, since it is larger than the sum of its proper divisors (1).
8166047 is an equidigital number, since it uses as much as digits as its factorization.
8166047 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 8064, while the sum is 32.
The square root of 8166047 is about 2857.6296121086.
The cubic root of 8166047 is about 201.3742604131.
The spelling of 8166047 in words is "eight million, one hundred sixty-six thousand, forty-seven".