103806789 has 4 divisors (see below), whose sum is σ = 138409056. Its totient is φ = 69204524.

The previous prime is 103806779. The next prime is 103806839. The reversal of 103806789 is 987608301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103806789 - 2¹¹ = 103804741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103806789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103806749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17301129 + ... + 17301134.

It is an arithmetic number, because the mean of its divisors is an integer number (34602264).

Almost surely, 2^103806789 is an apocalyptic number.

It is an amenable number.

103806789 is a deficient number, since it is larger than the sum of its proper divisors (34602267).

103806789 is an equidigital number, since it uses as much as digits as its factorization.

103806789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34602266.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 103806789 is about 10188.5616747409. The cubic root of 103806789 is about 469.9755366775.

The spelling of 103806789 in words is "one hundred three million, eight hundred six thousand, seven hundred eighty-nine".