8945047 has 2 divisors, whose sum is σ = 8945048. Its totient is φ = 8945046.

The previous prime is 8945039. The next prime is 8945051. The reversal of 8945047 is 7405498.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8945047 - 2³ = 8945039 is a prime.

8945047 is a lucky number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 8944997 and 8945015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8945147) 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, 4472523 + 4472524.

It is an arithmetic number, because the mean of its divisors is an integer number (4472524).

Almost surely, 2^8945047 is an apocalyptic number.

8945047 is a deficient number, since it is larger than the sum of its proper divisors (1).

8945047 is an equidigital number, since it uses as much as digits as its factorization.

8945047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 8945047 is about 2990.8271431161. The cubic root of 8945047 is about 207.5841590199.

The spelling of 8945047 in words is "eight million, nine hundred forty-five thousand, forty-seven".