103663689 has 8 divisors (see below), whose sum is σ = 138540672. Its totient is φ = 68947920.

The previous prime is 103663643. The next prime is 103663697. The reversal of 103663689 is 986366301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 103663689 - 2⁷ = 103663561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103663689.

It is not an unprimeable number, because it can be changed into a prime (103663619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38794 + ... + 41379.

It is an arithmetic number, because the mean of its divisors is an integer number (17317584).

Almost surely, 2^103663689 is an apocalyptic number.

It is an amenable number.

103663689 is a deficient number, since it is larger than the sum of its proper divisors (34876983).

103663689 is an equidigital number, since it uses as much as digits as its factorization.

103663689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80607.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 103663689 is about 10181.5366718389. The cubic root of 103663689 is about 469.7594800749.

The spelling of 103663689 in words is "one hundred three million, six hundred sixty-three thousand, six hundred eighty-nine".