10099091 has 4 divisors (see below), whose sum is σ = 10199184. Its totient is φ = 9999000.

The previous prime is 10099073. The next prime is 10099147. The reversal of 10099091 is 19099001.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10099091 - 2⁶ = 10099027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10099021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49895 + ... + 50096.

It is an arithmetic number, because the mean of its divisors is an integer number (2549796).

Almost surely, 2^10099091 is an apocalyptic number.

10099091 is a deficient number, since it is larger than the sum of its proper divisors (100093).

10099091 is an equidigital number, since it uses as much as digits as its factorization.

10099091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100092.

The product of its (nonzero) digits is 729, while the sum is 29.

The square root of 10099091 is about 3177.9067009590. The cubic root of 10099091 is about 216.1527483230.

The spelling of 10099091 in words is "ten million, ninety-nine thousand, ninety-one".