10009687 has 4 divisors (see below), whose sum is σ = 10146880. Its totient is φ = 9872496.

The previous prime is 10009679. The next prime is 10009691. The reversal of 10009687 is 78690001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10009687 - 2³ = 10009679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10009627) 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, 68487 + ... + 68632.

It is an arithmetic number, because the mean of its divisors is an integer number (2536720).

Almost surely, 2^10009687 is an apocalyptic number.

10009687 is a deficient number, since it is larger than the sum of its proper divisors (137193).

10009687 is an equidigital number, since it uses as much as digits as its factorization.

10009687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137192.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 10009687 is about 3163.8089386055. The cubic root of 10009687 is about 215.5130132483.

Adding to 10009687 its reverse (78690001), we get a palindrome (88699688).

The spelling of 10009687 in words is "ten million, nine thousand, six hundred eighty-seven".