10891099 has 2 divisors, whose sum is σ = 10891100. Its totient is φ = 10891098.

The previous prime is 10891087. The next prime is 10891147. The reversal of 10891099 is 99019801.

10891099 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (99019801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10891099 - 2⁹ = 10890587 is a prime.

It is not a weakly prime, because it can be changed into another prime (10891039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5445549 + 5445550.

It is an arithmetic number, because the mean of its divisors is an integer number (5445550).

Almost surely, 2^10891099 is an apocalyptic number.

10891099 is a deficient number, since it is larger than the sum of its proper divisors (1).

10891099 is an equidigital number, since it uses as much as digits as its factorization.

10891099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 37.

The square root of 10891099 is about 3300.1665109506. The cubic root of 10891099 is about 221.6616535195.

The spelling of 10891099 in words is "ten million, eight hundred ninety-one thousand, ninety-nine".