10686913 has 2 divisors, whose sum is σ = 10686914. Its totient is φ = 10686912.

The previous prime is 10686899. The next prime is 10686917. The reversal of 10686913 is 31968601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8020224 + 2666689 = 2832^2 + 1633^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10686913 is a prime.

It is a super-2 number, since 2×10686913² = 228420218939138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10686917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5343456 + 5343457.

It is an arithmetic number, because the mean of its divisors is an integer number (5343457).

Almost surely, 2^10686913 is an apocalyptic number.

It is an amenable number.

10686913 is a deficient number, since it is larger than the sum of its proper divisors (1).

10686913 is an equidigital number, since it uses as much as digits as its factorization.

10686913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 10686913 is about 3269.0844283989. The cubic root of 10686913 is about 220.2676700663.

It can be divided in two parts, 106 and 86913, that multiplied together give a triangular number (9212778 = T₄₂₉₂).

The spelling of 10686913 in words is "ten million, six hundred eighty-six thousand, nine hundred thirteen".