10289999 has 4 divisors (see below), whose sum is σ = 10302864. Its totient is φ = 10277136.

The previous prime is 10289971. The next prime is 10290019. The reversal of 10289999 is 99998201.

10289999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99998201 = 8387 ⋅11923.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10289999 is a prime.

It is a Duffinian number.

10289999 is a modest number, since divided by 9999 gives 1028 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10289899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5147 + ... + 6860.

It is an arithmetic number, because the mean of its divisors is an integer number (2575716).

Almost surely, 2^10289999 is an apocalyptic number.

10289999 is a deficient number, since it is larger than the sum of its proper divisors (12865).

10289999 is an equidigital number, since it uses as much as digits as its factorization.

10289999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12864.

The product of its (nonzero) digits is 104976, while the sum is 47.

The square root of 10289999 is about 3207.8028305992. The cubic root of 10289999 is about 217.5062683709.

The spelling of 10289999 in words is "ten million, two hundred eighty-nine thousand, nine hundred ninety-nine".