10686939 has 8 divisors (see below), whose sum is σ = 14317632. Its totient is φ = 7090440.

The previous prime is 10686917. The next prime is 10686943. The reversal of 10686939 is 93968601.

10686939 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10686939 - 2⁷ = 10686811 is a prime.

It is a super-2 number, since 2×10686939² = 228421330379442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10686939.

It is not an unprimeable number, because it can be changed into a prime (10686439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7809 + ... + 9074.

It is an arithmetic number, because the mean of its divisors is an integer number (1789704).

Almost surely, 2^10686939 is an apocalyptic number.

10686939 is a deficient number, since it is larger than the sum of its proper divisors (3630693).

10686939 is a wasteful number, since it uses less digits than its factorization.

10686939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17097.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 10686939 is about 3269.0884050451. The cubic root of 10686939 is about 220.2678486946.

The spelling of 10686939 in words is "ten million, six hundred eighty-six thousand, nine hundred thirty-nine".