10889491 has 2 divisors, whose sum is σ = 10889492. Its totient is φ = 10889490.

The previous prime is 10889441. The next prime is 10889509. The reversal of 10889491 is 19498801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10889491 - 2¹⁵ = 10856723 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10889441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5444745 + 5444746.

It is an arithmetic number, because the mean of its divisors is an integer number (5444746).

Almost surely, 2^10889491 is an apocalyptic number.

10889491 is a deficient number, since it is larger than the sum of its proper divisors (1).

10889491 is an equidigital number, since it uses as much as digits as its factorization.

10889491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 10889491 is about 3299.9228778867. The cubic root of 10889491 is about 221.6507440149.

The spelling of 10889491 in words is "ten million, eight hundred eighty-nine thousand, four hundred ninety-one".