3008561 has 4 divisors (see below), whose sum is σ = 3139392. Its totient is φ = 2877732.

The previous prime is 3008543. The next prime is 3008563. The reversal of 3008561 is 1658003.

3008561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1658003 = 463 ⋅3581.

It is a cyclic number.

It is not a de Polignac number, because 3008561 - 2¹⁸ = 2746417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 130807 = 3008561 / (3 + 0 + 0 + 8 + 5 + 6 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3008563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65381 + ... + 65426.

It is an arithmetic number, because the mean of its divisors is an integer number (784848).

Almost surely, 2^3008561 is an apocalyptic number.

It is an amenable number.

3008561 is a deficient number, since it is larger than the sum of its proper divisors (130831).

3008561 is a wasteful number, since it uses less digits than its factorization.

3008561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130830.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 3008561 is about 1734.5203948066. The cubic root of 3008561 is about 144.3620167232.

The spelling of 3008561 in words is "three million, eight thousand, five hundred sixty-one".