6425789 has 2 divisors, whose sum is σ = 6425790. Its totient is φ = 6425788.

The previous prime is 6425761. The next prime is 6425833. The reversal of 6425789 is 9875246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3422500 + 3003289 = 1850^2 + 1733^2 .

It is a cyclic number.

It is not a de Polignac number, because 6425789 - 2¹⁶ = 6360253 is a prime.

It is a d-powerful number, because it can be written as 6 + 4¹¹ + 2¹⁷ + 5⁵ + 7² + 8⁷ + 9² .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6425719) 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, 3212894 + 3212895.

It is an arithmetic number, because the mean of its divisors is an integer number (3212895).

Almost surely, 2^6425789 is an apocalyptic number.

It is an amenable number.

6425789 is a deficient number, since it is larger than the sum of its proper divisors (1).

6425789 is an equidigital number, since it uses as much as digits as its factorization.

6425789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 6425789 is about 2534.9140024861. The cubic root of 6425789 is about 185.9125981622.

It can be divided in two parts, 64257 and 89, that added together give a palindrome (64346).

The spelling of 6425789 in words is "six million, four hundred twenty-five thousand, seven hundred eighty-nine".