105863843 has 4 divisors (see below), whose sum is σ = 107861328. Its totient is φ = 103866360.

The previous prime is 105863837. The next prime is 105863861. The reversal of 105863843 is 348368501.

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 105863843 - 2⁸ = 105863587 is a prime.

It is a super-2 number, since 2×105863843² = 22414306509457298, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105863797 and 105863806.

It is not an unprimeable number, because it can be changed into a prime (105863803) 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, 998663 + ... + 998768.

It is an arithmetic number, because the mean of its divisors is an integer number (26965332).

Almost surely, 2^105863843 is an apocalyptic number.

105863843 is a deficient number, since it is larger than the sum of its proper divisors (1997485).

105863843 is an equidigital number, since it uses as much as digits as its factorization.

105863843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997484.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 105863843 is about 10289.0156477673. The cubic root of 105863843 is about 473.0596271303.

The spelling of 105863843 in words is "one hundred five million, eight hundred sixty-three thousand, eight hundred forty-three".