103959866 has 4 divisors (see below), whose sum is σ = 155939802. Its totient is φ = 51979932.

The previous prime is 103959859. The next prime is 103959893. The reversal of 103959866 is 668959301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 668959301 = 23 ⋅29085187.

It can be written as a sum of positive squares in only one way, i.e., 102434641 + 1525225 = 10121^2 + 1235^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 103959866.

It is an unprimeable number.

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, 25989965 + ... + 25989968.

Almost surely, 2^103959866 is an apocalyptic number.

103959866 is a deficient number, since it is larger than the sum of its proper divisors (51979936).

103959866 is an equidigital number, since it uses as much as digits as its factorization.

103959866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51979935.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 103959866 is about 10196.0711060683. The cubic root of 103959866 is about 470.2064371544.

The spelling of 103959866 in words is "one hundred three million, nine hundred fifty-nine thousand, eight hundred sixty-six".