10091899 has 2 divisors, whose sum is σ = 10091900. Its totient is φ = 10091898.

The previous prime is 10091839. The next prime is 10091909. The reversal of 10091899 is 99819001.

10091899 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (99819001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10091899 - 2¹³ = 10083707 is a prime.

It is not a weakly prime, because it can be changed into another prime (10091839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5045949 + 5045950.

It is an arithmetic number, because the mean of its divisors is an integer number (5045950).

Almost surely, 2^10091899 is an apocalyptic number.

10091899 is a deficient number, since it is larger than the sum of its proper divisors (1).

10091899 is an equidigital number, since it uses as much as digits as its factorization.

10091899 is an odious number, because the sum of its binary digits is odd.

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

The square root of 10091899 is about 3176.7749369447. The cubic root of 10091899 is about 216.1014255608.

The spelling of 10091899 in words is "ten million, ninety-one thousand, eight hundred ninety-nine".