8564741 has 2 divisors, whose sum is σ = 8564742. Its totient is φ = 8564740.

The previous prime is 8564729. The next prime is 8564749. The reversal of 8564741 is 1474658.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6400900 + 2163841 = 2530^2 + 1471^2 .

It is a cyclic number.

It is not a de Polignac number, because 8564741 - 2¹⁰ = 8563717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8564749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4282370 + 4282371.

It is an arithmetic number, because the mean of its divisors is an integer number (4282371).

Almost surely, 2^8564741 is an apocalyptic number.

It is an amenable number.

8564741 is a deficient number, since it is larger than the sum of its proper divisors (1).

8564741 is an equidigital number, since it uses as much as digits as its factorization.

8564741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 35.

The square root of 8564741 is about 2926.5578757305. The cubic root of 8564741 is about 204.5995832564.

The spelling of 8564741 in words is "eight million, five hundred sixty-four thousand, seven hundred forty-one".