1089528017 has 2 divisors, whose sum is σ = 1089528018. Its totient is φ = 1089528016.

The previous prime is 1089527987. The next prime is 1089528029. The reversal of 1089528017 is 7108259801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 945624001 + 143904016 = 30751^2 + 11996^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1089528017 is a prime.

It is not a weakly prime, because it can be changed into another prime (1089528067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544764008 + 544764009.

It is an arithmetic number, because the mean of its divisors is an integer number (544764009).

Almost surely, 2^1089528017 is an apocalyptic number.

It is an amenable number.

1089528017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089528017 is an equidigital number, since it uses as much as digits as its factorization.

1089528017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 41.

The square root of 1089528017 is about 33007.9992880514. Note that the first 3 decimals coincide. The cubic root of 1089528017 is about 1028.9939014719.

The spelling of 1089528017 in words is "one billion, eighty-nine million, five hundred twenty-eight thousand, seventeen".