103638943 has 8 divisors (see below), whose sum is σ = 108252000. Its totient is φ = 99034848.

The previous prime is 103638929. The next prime is 103638949. The reversal of 103638943 is 349836301.

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 103638943 - 2⁵ = 103638911 is a prime.

It is a super-3 number, since 3×103638943³ (a number of 25 digits) contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103638949) 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 7 ways as a sum of consecutive naturals, for example, 34173 + ... + 37081.

It is an arithmetic number, because the mean of its divisors is an integer number (13531500).

Almost surely, 2^103638943 is an apocalyptic number.

103638943 is a deficient number, since it is larger than the sum of its proper divisors (4613057).

103638943 is a wasteful number, since it uses less digits than its factorization.

103638943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4481.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 103638943 is about 10180.3213603501. The cubic root of 103638943 is about 469.7220976725.

It can be divided in two parts, 10363 and 8943, that added together give a triangular number (19306 = T₁₉₆).

The spelling of 103638943 in words is "one hundred three million, six hundred thirty-eight thousand, nine hundred forty-three".