10109686 has 4 divisors (see below), whose sum is σ = 15164532. Its totient is φ = 5054842.

The previous prime is 10109683. The next prime is 10109699. The reversal of 10109686 is 68690101.

It is a happy number.

10109686 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.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10109683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527420 + ... + 2527423.

It is an arithmetic number, because the mean of its divisors is an integer number (3791133).

Almost surely, 2^10109686 is an apocalyptic number.

10109686 is a deficient number, since it is larger than the sum of its proper divisors (5054846).

10109686 is an equidigital number, since it uses as much as digits as its factorization.

10109686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5054845.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 10109686 is about 3179.5732418046. The cubic root of 10109686 is about 216.2283108322.

Adding to 10109686 its reverse (68690101), we get a palindrome (78799787).

The spelling of 10109686 in words is "ten million, one hundred nine thousand, six hundred eighty-six".