103778609 has 8 divisors (see below), whose sum is σ = 113801952. Its totient is φ = 93853440.

The previous prime is 103778603. The next prime is 103778621. The reversal of 103778609 is 906877301.

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

It is a cyclic number.

It is not a de Polignac number, because 103778609 - 2¹² = 103774513 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (103778603) 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 7 ways as a sum of consecutive naturals, for example, 22319 + ... + 26564.

It is an arithmetic number, because the mean of its divisors is an integer number (14225244).

Almost surely, 2^103778609 is an apocalyptic number.

It is an amenable number.

103778609 is a deficient number, since it is larger than the sum of its proper divisors (10023343).

103778609 is a wasteful number, since it uses less digits than its factorization.

103778609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49087.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 103778609 is about 10187.1786575087. The cubic root of 103778609 is about 469.9330053898.

The spelling of 103778609 in words is "one hundred three million, seven hundred seventy-eight thousand, six hundred nine".