105683639 has 2 divisors, whose sum is σ = 105683640. Its totient is φ = 105683638.

The previous prime is 105683587. The next prime is 105683647. The reversal of 105683639 is 936386501.

It is a strong prime.

It is an emirp because it is prime and its reverse (936386501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105683639 - 2¹² = 105679543 is a prime.

It is a super-2 number, since 2×105683639² = 22338063104564642, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 105683596 and 105683605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105683839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52841819 + 52841820.

It is an arithmetic number, because the mean of its divisors is an integer number (52841820).

Almost surely, 2^105683639 is an apocalyptic number.

105683639 is a deficient number, since it is larger than the sum of its proper divisors (1).

105683639 is an equidigital number, since it uses as much as digits as its factorization.

105683639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 105683639 is about 10280.2548120171. The cubic root of 105683639 is about 472.7910568284.

The spelling of 105683639 in words is "one hundred five million, six hundred eighty-three thousand, six hundred thirty-nine".