1028952689 has 2 divisors, whose sum is σ = 1028952690. Its totient is φ = 1028952688.

The previous prime is 1028952677. The next prime is 1028952709. The reversal of 1028952689 is 9862598201.

1028952689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 914034289 + 114918400 = 30233^2 + 10720^2 .

It is a cyclic number.

It is not a de Polignac number, because 1028952689 - 2²⁰ = 1027904113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1028952629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514476344 + 514476345.

It is an arithmetic number, because the mean of its divisors is an integer number (514476345).

Almost surely, 2^1028952689 is an apocalyptic number.

It is an amenable number.

1028952689 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028952689 is an equidigital number, since it uses as much as digits as its factorization.

1028952689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 1028952689 is about 32077.2924200282. The cubic root of 1028952689 is about 1009.5592263546.

The spelling of 1028952689 in words is "one billion, twenty-eight million, nine hundred fifty-two thousand, six hundred eighty-nine".