10199885 has 4 divisors (see below), whose sum is σ = 12239868. Its totient is φ = 8159904.

The previous prime is 10199831. The next prime is 10199911. The reversal of 10199885 is 58899101.

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 7279204 + 2920681 = 2698^2 + 1709^2 .

It is a cyclic number.

It is not a de Polignac number, because 10199885 - 2⁶ = 10199821 is a prime.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1019984 + ... + 1019993.

It is an arithmetic number, because the mean of its divisors is an integer number (3059967).

Almost surely, 2^10199885 is an apocalyptic number.

It is an amenable number.

10199885 is a deficient number, since it is larger than the sum of its proper divisors (2039983).

10199885 is an equidigital number, since it uses as much as digits as its factorization.

10199885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039982.

The product of its (nonzero) digits is 25920, while the sum is 41.

The square root of 10199885 is about 3193.7258805351. The cubic root of 10199885 is about 216.8694734866.

The spelling of 10199885 in words is "ten million, one hundred ninety-nine thousand, eight hundred eighty-five".