1028797223 has 2 divisors, whose sum is σ = 1028797224. Its totient is φ = 1028797222.

The previous prime is 1028797193. The next prime is 1028797327. The reversal of 1028797223 is 3227978201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1028797223 - 2²⁶ = 961688359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1028790223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514398611 + 514398612.

It is an arithmetic number, because the mean of its divisors is an integer number (514398612).

Almost surely, 2^1028797223 is an apocalyptic number.

1028797223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028797223 is an equidigital number, since it uses as much as digits as its factorization.

1028797223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 1028797223 is about 32074.8690254536. The cubic root of 1028797223 is about 1009.5083785227.

The spelling of 1028797223 in words is "one billion, twenty-eight million, seven hundred ninety-seven thousand, two hundred twenty-three".