68003843 has 4 divisors (see below), whose sum is σ = 68020560. Its totient is φ = 67987128.

The previous prime is 68003833. The next prime is 68003849. The reversal of 68003843 is 34830086.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 68003843 - 2⁴ = 68003827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68003849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2138 + ... + 11856.

It is an arithmetic number, because the mean of its divisors is an integer number (17005140).

Almost surely, 2^68003843 is an apocalyptic number.

68003843 is a deficient number, since it is larger than the sum of its proper divisors (16717).

68003843 is an equidigital number, since it uses as much as digits as its factorization.

68003843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16716.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 68003843 is about 8246.4442640450. Note that the first 3 decimals coincide. The cubic root of 68003843 is about 408.1731991648.

The spelling of 68003843 in words is "sixty-eight million, three thousand, eight hundred forty-three".