890000011 has 2 divisors, whose sum is σ = 890000012. Its totient is φ = 890000010.

The previous prime is 890000003. The next prime is 890000021. The reversal of 890000011 is 110000098.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 890000011 - 2³ = 890000003 is a prime.

It is not a weakly prime, because it can be changed into another prime (890000021) 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, 445000005 + 445000006.

It is an arithmetic number, because the mean of its divisors is an integer number (445000006).

Almost surely, 2^890000011 is an apocalyptic number.

890000011 is a deficient number, since it is larger than the sum of its proper divisors (1).

890000011 is an equidigital number, since it uses as much as digits as its factorization.

890000011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 890000011 is about 29832.8679647130. The cubic root of 890000011 is about 961.9001755706.

The spelling of 890000011 in words is "eight hundred ninety million, eleven", and thus it is an aban number.