105643386 has 16 divisors (see below), whose sum is σ = 234763200. Its totient is φ = 35214444.

The previous prime is 105643333. The next prime is 105643403. The reversal of 105643386 is 683346501.

105643386 is a `hidden beast` number, since 1 + 0 + 5 + 643 + 3 + 8 + 6 = 666.

It is a super-2 number, since 2×105643386² = 22321050011089992, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105643386.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 978126 + ... + 978233.

It is an arithmetic number, because the mean of its divisors is an integer number (14672700).

Almost surely, 2^105643386 is an apocalyptic number.

105643386 is an abundant number, since it is smaller than the sum of its proper divisors (129119814).

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

105643386 is a wasteful number, since it uses less digits than its factorization.

105643386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956370 (or 1956364 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 105643386 is about 10278.2968433491. The cubic root of 105643386 is about 472.7310233318.

Adding to 105643386 its reverse (683346501), we get a palindrome (788989887).

The spelling of 105643386 in words is "one hundred five million, six hundred forty-three thousand, three hundred eighty-six".