5656789 has 2 divisors, whose sum is σ = 5656790. Its totient is φ = 5656788.

The previous prime is 5656759. The next prime is 5656799. The reversal of 5656789 is 9876565.

5656789 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4622500 + 1034289 = 2150^2 + 1017^2 .

It is a cyclic number.

It is not a de Polignac number, because 5656789 - 2⁵ = 5656757 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5656759) 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, 2828394 + 2828395.

It is an arithmetic number, because the mean of its divisors is an integer number (2828395).

Almost surely, 2^5656789 is an apocalyptic number.

It is an amenable number.

5656789 is a deficient number, since it is larger than the sum of its proper divisors (1).

5656789 is an equidigital number, since it uses as much as digits as its factorization.

5656789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 46.

The square root of 5656789 is about 2378.4005129498. The cubic root of 5656789 is about 178.1790585487.

The spelling of 5656789 in words is "five million, six hundred fifty-six thousand, seven hundred eighty-nine".