10289905 has 4 divisors (see below), whose sum is σ = 12347892. Its totient is φ = 8231920.

The previous prime is 10289899. The next prime is 10289911. The reversal of 10289905 is 50998201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50998201 = 3167 ⋅16103.

It is an interprime number because it is at equal distance from previous prime (10289899) and next prime (10289911).

It can be written as a sum of positive squares in 2 ways, for example, as 1710864 + 8579041 = 1308^2 + 2929^2 .

It is not a de Polignac number, because 10289905 - 2¹⁹ = 9765617 is a prime.

It is a Duffinian 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, 1028986 + ... + 1028995.

It is an arithmetic number, because the mean of its divisors is an integer number (3086973).

Almost surely, 2^10289905 is an apocalyptic number.

It is an amenable number.

10289905 is a deficient number, since it is larger than the sum of its proper divisors (2057987).

10289905 is an equidigital number, since it uses as much as digits as its factorization.

10289905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057986.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 10289905 is about 3207.7881787924. The cubic root of 10289905 is about 217.5056060562.

The spelling of 10289905 in words is "ten million, two hundred eighty-nine thousand, nine hundred five".