68865103 has 4 divisors (see below), whose sum is σ = 70726360. Its totient is φ = 67003848.

The previous prime is 68865091. The next prime is 68865119. The reversal of 68865103 is 30156886.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68865103 - 2²¹ = 66767951 is a prime.

It is a super-2 number, since 2×68865103² = 9484804822401218, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 1861219 = 68865103 / (6 + 8 + 8 + 6 + 5 + 1 + 0 + 3).

It is the 8299-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68863103) by changing a digit.

It is a nontrivial repunit in base 8298.

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 3 ways as a sum of consecutive naturals, for example, 930573 + ... + 930646.

It is an arithmetic number, because the mean of its divisors is an integer number (17681590).

Almost surely, 2^68865103 is an apocalyptic number.

68865103 is a deficient number, since it is larger than the sum of its proper divisors (1861257).

68865103 is a wasteful number, since it uses less digits than its factorization.

68865103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861256.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 68865103 is about 8298.5000451889. The cubic root of 68865103 is about 409.8891292520.

The spelling of 68865103 in words is "sixty-eight million, eight hundred sixty-five thousand, one hundred three".