1028090647 has 2 divisors, whose sum is σ = 1028090648. Its totient is φ = 1028090646.

The previous prime is 1028090599. The next prime is 1028090669. The reversal of 1028090647 is 7460908201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1028090647 - 2¹⁹ = 1027566359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1028090677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514045323 + 514045324.

It is an arithmetic number, because the mean of its divisors is an integer number (514045324).

Almost surely, 2^1028090647 is an apocalyptic number.

1028090647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028090647 is an equidigital number, since it uses as much as digits as its factorization.

1028090647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1028090647 is about 32063.8526537283. The cubic root of 1028090647 is about 1009.2772161080.

Adding to 1028090647 its reverse (7460908201), we get a palindrome (8488998848).

The spelling of 1028090647 in words is "one billion, twenty-eight million, ninety thousand, six hundred forty-seven".