2564717 has 4 divisors (see below), whose sum is σ = 2568000. Its totient is φ = 2561436.

The previous prime is 2564711. The next prime is 2564719. The reversal of 2564717 is 7174652.

2564717 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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2564717 - 2⁴ = 2564701 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 (2564711) 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, 284 + ... + 2282.

It is an arithmetic number, because the mean of its divisors is an integer number (642000).

2^2564717 is an apocalyptic number.

It is an amenable number.

2564717 is a deficient number, since it is larger than the sum of its proper divisors (3283).

2564717 is a wasteful number, since it uses less digits than its factorization.

2564717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282.

The product of its digits is 11760, while the sum is 32.

The square root of 2564717 is about 1601.4733841060. The cubic root of 2564717 is about 136.8820445628.

The spelling of 2564717 in words is "two million, five hundred sixty-four thousand, seven hundred seventeen".