8564791 has 2 divisors, whose sum is σ = 8564792. Its totient is φ = 8564790.

The previous prime is 8564789. The next prime is 8564813. The reversal of 8564791 is 1974658.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8564791 - 2¹ = 8564789 is a prime.

Together with 8564789, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8564741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4282395 + 4282396.

It is an arithmetic number, because the mean of its divisors is an integer number (4282396).

Almost surely, 2^8564791 is an apocalyptic number.

8564791 is a deficient number, since it is larger than the sum of its proper divisors (1).

8564791 is an equidigital number, since it uses as much as digits as its factorization.

8564791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 40.

The square root of 8564791 is about 2926.5664181768. The cubic root of 8564791 is about 204.5999813988.

The spelling of 8564791 in words is "eight million, five hundred sixty-four thousand, seven hundred ninety-one".