8246561 has 4 divisors (see below), whose sum is σ = 8369712. Its totient is φ = 8123412.

The previous prime is 8246533. The next prime is 8246587. The reversal of 8246561 is 1656428.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8246561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8246461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61475 + ... + 61608.

It is an arithmetic number, because the mean of its divisors is an integer number (2092428).

Almost surely, 2^8246561 is an apocalyptic number.

It is an amenable number.

8246561 is a deficient number, since it is larger than the sum of its proper divisors (123151).

8246561 is a wasteful number, since it uses less digits than its factorization.

8246561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123150.

The product of its digits is 11520, while the sum is 32.

The square root of 8246561 is about 2871.6826078103. The cubic root of 8246561 is about 202.0339207160.

The spelling of 8246561 in words is "eight million, two hundred forty-six thousand, five hundred sixty-one".