3662866 has 8 divisors (see below), whose sum is σ = 5549004. Its totient is φ = 1813200.

The previous prime is 3662861. The next prime is 3662881. The reversal of 3662866 is 6682663.

3662866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3441025 + 221841 = 1855^2 + 471^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3662861) by changing a digit.

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, 8865 + ... + 9268.

Almost surely, 2^3662866 is an apocalyptic number.

3662866 is a deficient number, since it is larger than the sum of its proper divisors (1886138).

3662866 is a wasteful number, since it uses less digits than its factorization.

3662866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18236.

The product of its digits is 62208, while the sum is 37.

The square root of 3662866 is about 1913.8615414914. The cubic root of 3662866 is about 154.1488693683.

The spelling of 3662866 in words is "three million, six hundred sixty-two thousand, eight hundred sixty-six".