13283866 has 8 divisors (see below), whose sum is σ = 19985940. Its totient is φ = 6621888.

The previous prime is 13283843. The next prime is 13283891. The reversal of 13283866 is 66838231.

It can be written as a sum of positive squares in 2 ways, for example, as 13111641 + 172225 = 3621^2 + 415^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13283866² = 352922191811912, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9181 + ... + 10528.

Almost surely, 2^13283866 is an apocalyptic number.

13283866 is a deficient number, since it is larger than the sum of its proper divisors (6702074).

13283866 is a wasteful number, since it uses less digits than its factorization.

13283866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20048.

The product of its digits is 41472, while the sum is 37.

The square root of 13283866 is about 3644.7038288454. The cubic root of 13283866 is about 236.8326068480.

The spelling of 13283866 in words is "thirteen million, two hundred eighty-three thousand, eight hundred sixty-six".