8947974593 has 2 divisors, whose sum is σ = 8947974594. Its totient is φ = 8947974592.

The previous prime is 8947974569. The next prime is 8947974601. The reversal of 8947974593 is 3954797498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7834551169 + 1113423424 = 88513^2 + 33368^2 .

It is a cyclic number.

It is not a de Polignac number, because 8947974593 - 2⁸ = 8947974337 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8947974493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4473987296 + 4473987297.

It is an arithmetic number, because the mean of its divisors is an integer number (4473987297).

Almost surely, 2^8947974593 is an apocalyptic number.

It is an amenable number.

8947974593 is a deficient number, since it is larger than the sum of its proper divisors (1).

8947974593 is an equidigital number, since it uses as much as digits as its factorization.

8947974593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68584320, while the sum is 65.

The square root of 8947974593 is about 94593.7344278150. The cubic root of 8947974593 is about 2076.0680304634.

The spelling of 8947974593 in words is "eight billion, nine hundred forty-seven million, nine hundred seventy-four thousand, five hundred ninety-three".