10839866 has 4 divisors (see below), whose sum is σ = 16259802. Its totient is φ = 5419932.

The previous prime is 10839839. The next prime is 10839869. The reversal of 10839866 is 66893801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66893801 = 13 ⋅5145677.

It can be written as a sum of positive squares in only one way, i.e., 7134241 + 3705625 = 2671^2 + 1925^2 .

It is not an unprimeable number, because it can be changed into a prime (10839869) 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, 2709965 + ... + 2709968.

Almost surely, 2^10839866 is an apocalyptic number.

10839866 is a deficient number, since it is larger than the sum of its proper divisors (5419936).

10839866 is an equidigital number, since it uses as much as digits as its factorization.

10839866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5419935.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 10839866 is about 3292.3951767672. The cubic root of 10839866 is about 221.3135329903.

The spelling of 10839866 in words is "ten million, eight hundred thirty-nine thousand, eight hundred sixty-six".