8999047 has 2 divisors, whose sum is σ = 8999048. Its totient is φ = 8999046.

The previous prime is 8999033. The next prime is 8999051. The reversal of 8999047 is 7409998.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8999047 - 2⁷ = 8998919 is a prime.

8999047 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8998988 and 8999006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8999087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4499523 + 4499524.

It is an arithmetic number, because the mean of its divisors is an integer number (4499524).

Almost surely, 2^8999047 is an apocalyptic number.

8999047 is a deficient number, since it is larger than the sum of its proper divisors (1).

8999047 is an equidigital number, since it uses as much as digits as its factorization.

8999047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 8999047 is about 2999.8411624618. The cubic root of 8999047 is about 208.0010401205.

The spelling of 8999047 in words is "eight million, nine hundred ninety-nine thousand, forty-seven".