8894995009 has 2 divisors, whose sum is σ = 8894995010. Its totient is φ = 8894995008.

The previous prime is 8894994971. The next prime is 8894995019. The reversal of 8894995009 is 9005994988.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8052370225 + 842624784 = 89735^2 + 29028^2 .

It is a cyclic number.

It is not a de Polignac number, because 8894995009 - 2⁹ = 8894994497 is a prime.

It is not a weakly prime, because it can be changed into another prime (8894995019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4447497504 + 4447497505.

It is an arithmetic number, because the mean of its divisors is an integer number (4447497505).

Almost surely, 2^8894995009 is an apocalyptic number.

It is an amenable number.

8894995009 is a deficient number, since it is larger than the sum of its proper divisors (1).

8894995009 is an equidigital number, since it uses as much as digits as its factorization.

8894995009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8398080, while the sum is 61.

The square root of 8894995009 is about 94313.2811909330. The cubic root of 8894995009 is about 2071.9625571049.

The spelling of 8894995009 in words is "eight billion, eight hundred ninety-four million, nine hundred ninety-five thousand, nine".