105727666 has 16 divisors (see below), whose sum is σ = 182115360. Its totient is φ = 45528480.

The previous prime is 105727651. The next prime is 105727667. The reversal of 105727666 is 666727501.

It is a happy number.

It is a super-2 number, since 2×105727666² = 22356678715615112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105727667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126051 + ... + 126886.

It is an arithmetic number, because the mean of its divisors is an integer number (11382210).

Almost surely, 2^105727666 is an apocalyptic number.

105727666 is a deficient number, since it is larger than the sum of its proper divisors (76387694).

105727666 is a wasteful number, since it uses less digits than its factorization.

105727666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252969.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 105727666 is about 10282.3959270201. The cubic root of 105727666 is about 472.8567014327.

The spelling of 105727666 in words is "one hundred five million, seven hundred twenty-seven thousand, six hundred sixty-six".