5657789 has 2 divisors, whose sum is σ = 5657790. Its totient is φ = 5657788.

The previous prime is 5657767. The next prime is 5657831. The reversal of 5657789 is 9877565.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3880900 + 1776889 = 1970^2 + 1333^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5657789 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5657749) 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 as a sum of consecutive naturals, namely, 2828894 + 2828895.

It is an arithmetic number, because the mean of its divisors is an integer number (2828895).

Almost surely, 2^5657789 is an apocalyptic number.

It is an amenable number.

5657789 is a deficient number, since it is larger than the sum of its proper divisors (1).

5657789 is an equidigital number, since it uses as much as digits as its factorization.

5657789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 529200, while the sum is 47.

The square root of 5657789 is about 2378.6107289761. The cubic root of 5657789 is about 178.1895573529.

It can be divided in two parts, 5657 and 789, that added together give a palindrome (6446).

The spelling of 5657789 in words is "five million, six hundred fifty-seven thousand, seven hundred eighty-nine".