10098805 has 4 divisors (see below), whose sum is σ = 12118572. Its totient is φ = 8079040.

The previous prime is 10098793. The next prime is 10098821. The reversal of 10098805 is 50889001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3411409 + 6687396 = 1847^2 + 2586^2 .

It is not a de Polignac number, because 10098805 - 2⁷ = 10098677 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 1009876 + ... + 1009885.

It is an arithmetic number, because the mean of its divisors is an integer number (3029643).

Almost surely, 2^10098805 is an apocalyptic number.

It is an amenable number.

10098805 is a deficient number, since it is larger than the sum of its proper divisors (2019767).

10098805 is an equidigital number, since it uses as much as digits as its factorization.

10098805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019766.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 10098805 is about 3177.8617024660. The cubic root of 10098805 is about 216.1507078664.

The spelling of 10098805 in words is "ten million, ninety-eight thousand, eight hundred five".