105679843 has 4 divisors (see below), whose sum is σ = 111241960. Its totient is φ = 100117728.

The previous prime is 105679831. The next prime is 105679867. The reversal of 105679843 is 348976501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 348976501 = 5483 ⋅63647.

It is a cyclic number.

It is not a de Polignac number, because 105679843 - 2⁵ = 105679811 is a prime.

It is a super-2 number, since 2×105679843² = 22336458433009298, 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 105679843.

It is not an unprimeable number, because it can be changed into a prime (105679813) 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, 2781030 + ... + 2781067.

It is an arithmetic number, because the mean of its divisors is an integer number (27810490).

Almost surely, 2^105679843 is an apocalyptic number.

105679843 is a deficient number, since it is larger than the sum of its proper divisors (5562117).

105679843 is an equidigital number, since it uses as much as digits as its factorization.

105679843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5562116.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 105679843 is about 10280.0701845853. The cubic root of 105679843 is about 472.7853961088.

The spelling of 105679843 in words is "one hundred five million, six hundred seventy-nine thousand, eight hundred forty-three".