8459561 has 16 divisors (see below), whose sum is σ = 9970560. Its totient is φ = 7096320.

The previous prime is 8459533. The next prime is 8459567. The reversal of 8459561 is 1659548.

It is not a de Polignac number, because 8459561 - 2¹⁴ = 8443177 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8459567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6761 + ... + 7913.

It is an arithmetic number, because the mean of its divisors is an integer number (623160).

Almost surely, 2^8459561 is an apocalyptic number.

It is an amenable number.

8459561 is a deficient number, since it is larger than the sum of its proper divisors (1510999).

8459561 is a wasteful number, since it uses less digits than its factorization.

8459561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216.

The product of its digits is 43200, while the sum is 38.

The square root of 8459561 is about 2908.5324478163. The cubic root of 8459561 is about 203.7585972510.

The spelling of 8459561 in words is "eight million, four hundred fifty-nine thousand, five hundred sixty-one".