1028262791 has 2 divisors, whose sum is σ = 1028262792. Its totient is φ = 1028262790.

The previous prime is 1028262769. The next prime is 1028262877. The reversal of 1028262791 is 1972628201.

1028262791 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1028262791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1028232791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514131395 + 514131396.

It is an arithmetic number, because the mean of its divisors is an integer number (514131396).

Almost surely, 2^1028262791 is an apocalyptic number.

1028262791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028262791 is an equidigital number, since it uses as much as digits as its factorization.

1028262791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 1028262791 is about 32066.5369349420. The cubic root of 1028262791 is about 1009.3335442543. Note that the first 3 decimals are identical.

The spelling of 1028262791 in words is "one billion, twenty-eight million, two hundred sixty-two thousand, seven hundred ninety-one".