105943878 has 24 divisors (see below), whose sum is σ = 232692408. Its totient is φ = 34830432.

The previous prime is 105943823. The next prime is 105943889. The reversal of 105943878 is 878349501.

It is a super-2 number, since 2×105943878² = 22448210571357768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39000 + ... + 41627.

It is an arithmetic number, because the mean of its divisors is an integer number (9695517).

Almost surely, 2^105943878 is an apocalyptic number.

105943878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

105943878 is an abundant number, since it is smaller than the sum of its proper divisors (126748530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105943878 is a wasteful number, since it uses less digits than its factorization.

105943878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80708 (or 80705 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 105943878 is about 10292.9042548738. The cubic root of 105943878 is about 473.1788110081.

The spelling of 105943878 in words is "one hundred five million, nine hundred forty-three thousand, eight hundred seventy-eight".