10387009 has 4 divisors (see below), whose sum is σ = 10563120. Its totient is φ = 10210900.

The previous prime is 10387001. The next prime is 10387031. The reversal of 10387009 is 90078301.

10387009 is digitally balanced in base 3, 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10387009 - 2³ = 10387001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10387001) by changing a digit.

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, 87967 + ... + 88084.

It is an arithmetic number, because the mean of its divisors is an integer number (2640780).

Almost surely, 2^10387009 is an apocalyptic number.

It is an amenable number.

10387009 is a deficient number, since it is larger than the sum of its proper divisors (176111).

10387009 is an equidigital number, since it uses as much as digits as its factorization.

10387009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176110.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 10387009 is about 3222.8883008879. Note that the first 3 decimals coincide. The cubic root of 10387009 is about 218.1876523009.

The spelling of 10387009 in words is "ten million, three hundred eighty-seven thousand, nine".