10686539 has 2 divisors, whose sum is σ = 10686540. Its totient is φ = 10686538.

The previous prime is 10686509. The next prime is 10686541. The reversal of 10686539 is 93568601.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10686539 is a prime.

It is a super-2 number, since 2×10686539² = 228404231597042, which contains 22 as substring.

Together with 10686541, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10686509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5343269 + 5343270.

It is an arithmetic number, because the mean of its divisors is an integer number (5343270).

Almost surely, 2^10686539 is an apocalyptic number.

10686539 is a deficient number, since it is larger than the sum of its proper divisors (1).

10686539 is an equidigital number, since it uses as much as digits as its factorization.

10686539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 10686539 is about 3269.0272253378. The cubic root of 10686539 is about 220.2651005351.

The spelling of 10686539 in words is "ten million, six hundred eighty-six thousand, five hundred thirty-nine".