9027000091 has 2 divisors, whose sum is σ = 9027000092. Its totient is φ = 9027000090.

The previous prime is 9027000089. The next prime is 9027000127. The reversal of 9027000091 is 1900007209.

It is a weak prime.

It is an emirp because it is prime and its reverse (1900007209) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9027000091 - 2¹ = 9027000089 is a prime.

Together with 9027000089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9027000061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4513500045 + 4513500046.

It is an arithmetic number, because the mean of its divisors is an integer number (4513500046).

Almost surely, 2^9027000091 is an apocalyptic number.

9027000091 is a deficient number, since it is larger than the sum of its proper divisors (1).

9027000091 is an equidigital number, since it uses as much as digits as its factorization.

9027000091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 9027000091 is about 95010.5262115730. The cubic root of 9027000091 is about 2082.1618372477.

The spelling of 9027000091 in words is "nine billion, twenty-seven million, ninety-one", and thus it is an aban number and an uban number.