1027806089 has 2 divisors, whose sum is σ = 1027806090. Its totient is φ = 1027806088.

The previous prime is 1027806067. The next prime is 1027806097. The reversal of 1027806089 is 9806087201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 991746064 + 36060025 = 31492^2 + 6005^2 .

It is an emirp because it is prime and its reverse (9806087201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1027806089 - 2²⁴ = 1011028873 is a prime.

It is not a weakly prime, because it can be changed into another prime (1027806029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513903044 + 513903045.

It is an arithmetic number, because the mean of its divisors is an integer number (513903045).

Almost surely, 2^1027806089 is an apocalyptic number.

It is an amenable number.

1027806089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1027806089 is an equidigital number, since it uses as much as digits as its factorization.

1027806089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 1027806089 is about 32059.4149821858. The cubic root of 1027806089 is about 1009.1840905949.

The spelling of 1027806089 in words is "one billion, twenty-seven million, eight hundred six thousand, eighty-nine".