2800560961 has 4 divisors (see below), whose sum is σ = 3055157424. Its totient is φ = 2545964500.

The previous prime is 2800560949. The next prime is 2800561013. The reversal of 2800560961 is 1690650082.

2800560961 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.

It is a cyclic number.

It is not a de Polignac number, because 2800560961 - 2⁹ = 2800560449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2800560961.

It is not an unprimeable number, because it can be changed into a prime (2800560901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127298215 + ... + 127298236.

It is an arithmetic number, because the mean of its divisors is an integer number (763789356).

Almost surely, 2^2800560961 is an apocalyptic number.

It is an amenable number.

2800560961 is a deficient number, since it is larger than the sum of its proper divisors (254596463).

2800560961 is a wasteful number, since it uses less digits than its factorization.

2800560961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254596462.

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

The square root of 2800560961 is about 52920.3265390530. The cubic root of 2800560961 is about 1409.5538653599.

The spelling of 2800560961 in words is "two billion, eight hundred million, five hundred sixty thousand, nine hundred sixty-one".