1090992817 has 2 divisors, whose sum is σ = 1090992818. Its totient is φ = 1090992816.

The previous prime is 1090992769. The next prime is 1090992823. The reversal of 1090992817 is 7182990901.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 824780961 + 266211856 = 28719^2 + 16316^2 .

It is an emirp because it is prime and its reverse (7182990901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1090992817 - 2¹⁵ = 1090960049 is a prime.

It is not a weakly prime, because it can be changed into another prime (1090992317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545496408 + 545496409.

It is an arithmetic number, because the mean of its divisors is an integer number (545496409).

Almost surely, 2^1090992817 is an apocalyptic number.

It is an amenable number.

1090992817 is a deficient number, since it is larger than the sum of its proper divisors (1).

1090992817 is an equidigital number, since it uses as much as digits as its factorization.

1090992817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 46.

The square root of 1090992817 is about 33030.1803961165. The cubic root of 1090992817 is about 1029.4548335671.

The spelling of 1090992817 in words is "one billion, ninety million, nine hundred ninety-two thousand, eight hundred seventeen".