105906869 has 8 divisors (see below), whose sum is σ = 109839000. Its totient is φ = 101993472.

The previous prime is 105906863. The next prime is 105906887. The reversal of 105906869 is 968609501.

It can be written as a sum of positive squares in 4 ways, for example, as 12687844 + 93219025 = 3562^2 + 9655^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105906869 is a prime.

It is a super-2 number, since 2×105906869² = 22432529802766322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105906863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7397 + ... + 16325.

It is an arithmetic number, because the mean of its divisors is an integer number (13729875).

Almost surely, 2^105906869 is an apocalyptic number.

It is an amenable number.

105906869 is a deficient number, since it is larger than the sum of its proper divisors (3932131).

105906869 is an equidigital number, since it uses as much as digits as its factorization.

105906869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9367.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 105906869 is about 10291.1063059323. The cubic root of 105906869 is about 473.1237066312.

The spelling of 105906869 in words is "one hundred five million, nine hundred six thousand, eight hundred sixty-nine".