105887638 has 4 divisors (see below), whose sum is σ = 158831460. Its totient is φ = 52943818.

The previous prime is 105887633. The next prime is 105887669. The reversal of 105887638 is 836788501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 836788501 = 17 ⋅49222853.

It is a super-2 number, since 2×105887638² = 22424383762438088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105887633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26471908 + ... + 26471911.

It is an arithmetic number, because the mean of its divisors is an integer number (39707865).

Almost surely, 2^105887638 is an apocalyptic number.

105887638 is a deficient number, since it is larger than the sum of its proper divisors (52943822).

105887638 is an equidigital number, since it uses as much as digits as its factorization.

105887638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52943821.

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 105887638 is about 10290.1719130440. The cubic root of 105887638 is about 473.0950676554.

The spelling of 105887638 in words is "one hundred five million, eight hundred eighty-seven thousand, six hundred thirty-eight".