105869 has 4 divisors (see below), whose sum is σ = 110496. Its totient is φ = 101244.

The previous prime is 105863. The next prime is 105871. The reversal of 105869 is 968501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 105869 - 2⁸ = 105613 is a prime.

It is a super-2 number, since 2×105869² = 22416490322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 105869.

It is not an unprimeable number, because it can be changed into a prime (105863) 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, 2279 + ... + 2324.

It is an arithmetic number, because the mean of its divisors is an integer number (27624).

2¹⁰⁵⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

105869 is a deficient number, since it is larger than the sum of its proper divisors (4627).

105869 is an equidigital number, since it uses as much as digits as its factorization.

105869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4626.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 105869 is about 325.3751680753. The cubic root of 105869 is about 47.3067308471.

The spelling of 105869 in words is "one hundred five thousand, eight hundred sixty-nine".