13028489 has 2 divisors, whose sum is σ = 13028490. Its totient is φ = 13028488.

The previous prime is 13028479. The next prime is 13028501. The reversal of 13028489 is 98482031.

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., 12902464 + 126025 = 3592^2 + 355^2 .

It is a cyclic number.

It is not a de Polignac number, because 13028489 - 2⁴ = 13028473 is a prime.

It is not a weakly prime, because it can be changed into another prime (13028459) 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, 6514244 + 6514245.

It is an arithmetic number, because the mean of its divisors is an integer number (6514245).

Almost surely, 2^13028489 is an apocalyptic number.

It is an amenable number.

13028489 is a deficient number, since it is larger than the sum of its proper divisors (1).

13028489 is an equidigital number, since it uses as much as digits as its factorization.

13028489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 13028489 is about 3609.4998268458. The cubic root of 13028489 is about 235.3051054391.

The spelling of 13028489 in words is "thirteen million, twenty-eight thousand, four hundred eighty-nine".