1028792669 has 2 divisors, whose sum is σ = 1028792670. Its totient is φ = 1028792668.

The previous prime is 1028792663. The next prime is 1028792761. The reversal of 1028792669 is 9662978201.

It is a happy number.

1028792669 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., 825872644 + 202920025 = 28738^2 + 14245^2 .

It is a cyclic number.

It is not a de Polignac number, because 1028792669 - 2²⁰ = 1027744093 is a prime.

It is a super-2 number, since 2×1028792669² = 2116828711576287122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1028792663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514396334 + 514396335.

It is an arithmetic number, because the mean of its divisors is an integer number (514396335).

Almost surely, 2^1028792669 is an apocalyptic number.

It is an amenable number.

1028792669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028792669 is an equidigital number, since it uses as much as digits as its factorization.

1028792669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 1028792669 is about 32074.7980352176. The cubic root of 1028792669 is about 1009.5068889814.

The spelling of 1028792669 in words is "one billion, twenty-eight million, seven hundred ninety-two thousand, six hundred sixty-nine".