105789638 has 4 divisors (see below), whose sum is σ = 158684460. Its totient is φ = 52894818.

The previous prime is 105789637. The next prime is 105789647. The reversal of 105789638 is 836987501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×105789638² = 22382895016342088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105789592 and 105789601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105789631) 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, 26447408 + ... + 26447411.

It is an arithmetic number, because the mean of its divisors is an integer number (39671115).

Almost surely, 2^105789638 is an apocalyptic number.

105789638 is a deficient number, since it is larger than the sum of its proper divisors (52894822).

105789638 is an equidigital number, since it uses as much as digits as its factorization.

105789638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52894821.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 105789638 is about 10285.4089855484. The cubic root of 105789638 is about 472.9490713015.

The spelling of 105789638 in words is "one hundred five million, seven hundred eighty-nine thousand, six hundred thirty-eight".