8342561 has 2 divisors, whose sum is σ = 8342562. Its totient is φ = 8342560.

The previous prime is 8342549. The next prime is 8342567. The reversal of 8342561 is 1652438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7054336 + 1288225 = 2656^2 + 1135^2 .

It is a cyclic number.

It is not a de Polignac number, because 8342561 - 2¹⁰ = 8341537 is a prime.

It is not a weakly prime, because it can be changed into another prime (8342567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4171280 + 4171281.

It is an arithmetic number, because the mean of its divisors is an integer number (4171281).

Almost surely, 2^8342561 is an apocalyptic number.

It is an amenable number.

8342561 is a deficient number, since it is larger than the sum of its proper divisors (1).

8342561 is an equidigital number, since it uses as much as digits as its factorization.

8342561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 8342561 is about 2888.3491824916. The cubic root of 8342561 is about 202.8148716250.

Adding to 8342561 its reverse (1652438), we get a palindrome (9994999).

The spelling of 8342561 in words is "eight million, three hundred forty-two thousand, five hundred sixty-one".