105663706 has 4 divisors (see below), whose sum is σ = 158495562. Its totient is φ = 52831852.

The previous prime is 105663703. The next prime is 105663743. The reversal of 105663706 is 607366501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 607366501 = 7 ⋅86766643.

It can be written as a sum of positive squares in only one way, i.e., 82537225 + 23126481 = 9085^2 + 4809^2 .

It is a super-2 number, since 2×105663706² = 22329637531308872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105663703) 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 as a sum of consecutive naturals, namely, 26415925 + ... + 26415928.

Almost surely, 2^105663706 is an apocalyptic number.

105663706 is a deficient number, since it is larger than the sum of its proper divisors (52831856).

105663706 is an equidigital number, since it uses as much as digits as its factorization.

105663706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52831855.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 105663706 is about 10279.2852864389. The cubic root of 105663706 is about 472.7613305725.

The spelling of 105663706 in words is "one hundred five million, six hundred sixty-three thousand, seven hundred six".