2968561 has 4 divisors (see below), whose sum is σ = 2972992. Its totient is φ = 2964132.

The previous prime is 2968549. The next prime is 2968573. The reversal of 2968561 is 1658692.

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 an interprime number because it is at equal distance from previous prime (2968549) and next prime (2968573).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2968561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2968561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2968531) 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, 981 + ... + 2626.

It is an arithmetic number, because the mean of its divisors is an integer number (743248).

2^2968561 is an apocalyptic number.

It is an amenable number.

2968561 is a deficient number, since it is larger than the sum of its proper divisors (4431).

2968561 is an equidigital number, since it uses as much as digits as its factorization.

2968561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4430.

The product of its digits is 25920, while the sum is 37.

The square root of 2968561 is about 1722.9512471338. The cubic root of 2968561 is about 143.7193769677.

The spelling of 2968561 in words is "two million, nine hundred sixty-eight thousand, five hundred sixty-one".