1028229663 has 4 divisors (see below), whose sum is σ = 1370972888. Its totient is φ = 685486440.

The previous prime is 1028229641. The next prime is 1028229673. The reversal of 1028229663 is 3669228201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1028229663 - 2⁶ = 1028229599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028229673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171371608 + ... + 171371613.

It is an arithmetic number, because the mean of its divisors is an integer number (342743222).

Almost surely, 2^1028229663 is an apocalyptic number.

1028229663 is a deficient number, since it is larger than the sum of its proper divisors (342743225).

1028229663 is an equidigital number, since it uses as much as digits as its factorization.

1028229663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342743224.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 1028229663 is about 32066.0203798351. The cubic root of 1028229663 is about 1009.3227047552.

The spelling of 1028229663 in words is "one billion, twenty-eight million, two hundred twenty-nine thousand, six hundred sixty-three".