5656817 has 2 divisors, whose sum is σ = 5656818. Its totient is φ = 5656816.

The previous prime is 5656799. The next prime is 5656823. The reversal of 5656817 is 7186565.

It is a happy number.

5656817 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3418801 + 2238016 = 1849^2 + 1496^2 .

It is a cyclic number.

It is not a de Polignac number, because 5656817 - 2¹⁶ = 5591281 is a prime.

It is not a weakly prime, because it can be changed into another prime (5656837) 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 as a sum of consecutive naturals, namely, 2828408 + 2828409.

It is an arithmetic number, because the mean of its divisors is an integer number (2828409).

Almost surely, 2^5656817 is an apocalyptic number.

It is an amenable number.

5656817 is a deficient number, since it is larger than the sum of its proper divisors (1).

5656817 is an equidigital number, since it uses as much as digits as its factorization.

5656817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 38.

The square root of 5656817 is about 2378.4063992514. The cubic root of 5656817 is about 178.1793525320.

The spelling of 5656817 in words is "five million, six hundred fifty-six thousand, eight hundred seventeen".