103206689 has 12 divisors (see below), whose sum is σ = 111044400. Its totient is φ = 95655528.

The previous prime is 103206683. The next prime is 103206703. The reversal of 103206689 is 986602301.

It is a de Polignac number, because none of the positive numbers 2^k-103206689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103206683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40742 + ... + 43200.

It is an arithmetic number, because the mean of its divisors is an integer number (9253700).

Almost surely, 2^103206689 is an apocalyptic number.

103206689 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

103206689 is a deficient number, since it is larger than the sum of its proper divisors (7837711).

103206689 is an equidigital number, since it uses as much as digits as its factorization.

103206689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572 (or 2525 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 103206689 is about 10159.0692979229. The cubic root of 103206689 is about 469.0681536943.

The spelling of 103206689 in words is "one hundred three million, two hundred six thousand, six hundred eighty-nine".