10686839 has 4 divisors (see below), whose sum is σ = 10786824. Its totient is φ = 10586856.

The previous prime is 10686817. The next prime is 10686857. The reversal of 10686839 is 93868601.

It is a happy number.

10686839 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: 93868601 = 83 ⋅1130947.

It is a cyclic number.

It is not a de Polignac number, because 10686839 - 2⁸ = 10686583 is a prime.

It is a super-2 number, since 2×10686839² = 228417055623842, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10686796 and 10686805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10686859) 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, 49832 + ... + 50045.

It is an arithmetic number, because the mean of its divisors is an integer number (2696706).

Almost surely, 2^10686839 is an apocalyptic number.

10686839 is a deficient number, since it is larger than the sum of its proper divisors (99985).

10686839 is an equidigital number, since it uses as much as digits as its factorization.

10686839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99984.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 10686839 is about 3269.0731102256. The cubic root of 10686839 is about 220.2671616611.

The spelling of 10686839 in words is "ten million, six hundred eighty-six thousand, eight hundred thirty-nine".