105599983 has 4 divisors (see below), whose sum is σ = 105636960. Its totient is φ = 105563008.

The previous prime is 105599957. The next prime is 105599993. The reversal of 105599983 is 389995501.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 105599983 - 2⁵ = 105599951 is a prime.

It is a super-2 number, since 2×105599983² = 22302712819200578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105599993) 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 in 3 ways as a sum of consecutive naturals, for example, 13810 + ... + 20047.

It is an arithmetic number, because the mean of its divisors is an integer number (26409240).

Almost surely, 2^105599983 is an apocalyptic number.

105599983 is a deficient number, since it is larger than the sum of its proper divisors (36977).

105599983 is an equidigital number, since it uses as much as digits as its factorization.

105599983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36976.

The product of its (nonzero) digits is 437400, while the sum is 49.

The square root of 105599983 is about 10276.1852357769. The cubic root of 105599983 is about 472.6662748230. Note that the first 3 decimals are identical.

The spelling of 105599983 in words is "one hundred five million, five hundred ninety-nine thousand, nine hundred eighty-three".