3660986 has 12 divisors (see below), whose sum is σ = 6388218. Its totient is φ = 1568952.

The previous prime is 3660961. The next prime is 3661019. The reversal of 3660986 is 6890663.

3660986 = 79² + 80² + ... + 225².

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3441025 + 219961 = 1855^2 + 469^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18581 + ... + 18776.

Almost surely, 2^3660986 is an apocalyptic number.

3660986 is a deficient number, since it is larger than the sum of its proper divisors (2727232).

3660986 is a wasteful number, since it uses less digits than its factorization.

3660986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37373 (or 37366 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 3660986 is about 1913.3703248457. The cubic root of 3660986 is about 154.1224920753.

The spelling of 3660986 in words is "three million, six hundred sixty thousand, nine hundred eighty-six".