1025789 has 2 divisors, whose sum is σ = 1025790. Its totient is φ = 1025788.

The previous prime is 1025767. The next prime is 1025803. The reversal of 1025789 is 9875201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 840889 + 184900 = 917^2 + 430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1025789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512894 + 512895.

It is an arithmetic number, because the mean of its divisors is an integer number (512895).

2^1025789 is an apocalyptic number.

It is an amenable number.

1025789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025789 is an equidigital number, since it uses as much as digits as its factorization.

1025789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 1025789 is about 1012.8124209349. The cubic root of 1025789 is about 100.8523477259.

The spelling of 1025789 in words is "one million, twenty-five thousand, seven hundred eighty-nine".