10299865 has 4 divisors (see below), whose sum is σ = 12359844. Its totient is φ = 8239888.

The previous prime is 10299853. The next prime is 10299871. The reversal of 10299865 is 56899201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56899201 = 1063 ⋅53527.

It can be written as a sum of positive squares in 2 ways, for example, as 1490841 + 8809024 = 1221^2 + 2968^2 .

It is a cyclic number.

It is not a de Polignac number, because 10299865 - 2⁹ = 10299353 is a prime.

It is a Smith number, since the sum of its digits (40) 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 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, 1029982 + ... + 1029991.

It is an arithmetic number, because the mean of its divisors is an integer number (3089961).

Almost surely, 2^10299865 is an apocalyptic number.

It is an amenable number.

10299865 is a deficient number, since it is larger than the sum of its proper divisors (2059979).

10299865 is an equidigital number, since it uses as much as digits as its factorization.

10299865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059978.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 10299865 is about 3209.3402748852. The cubic root of 10299865 is about 217.5757608097.

The spelling of 10299865 in words is "ten million, two hundred ninety-nine thousand, eight hundred sixty-five".