3689966 has 16 divisors (see below), whose sum is σ = 6446304. Its totient is φ = 1551264.

The previous prime is 3689963. The next prime is 3689993. The reversal of 3689966 is 6699863.

It is a self number, because there is not a number n which added to its sum of digits gives 3689966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3689963) 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 in 7 ways as a sum of consecutive naturals, for example, 1745 + ... + 3228.

It is an arithmetic number, because the mean of its divisors is an integer number (402894).

Almost surely, 2^3689966 is an apocalyptic number.

3689966 is a deficient number, since it is larger than the sum of its proper divisors (2756338).

3689966 is a wasteful number, since it uses less digits than its factorization.

3689966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5035.

The product of its digits is 419904, while the sum is 47.

The square root of 3689966 is about 1920.9284213630. The cubic root of 3689966 is about 154.5280964672.

The spelling of 3689966 in words is "three million, six hundred eighty-nine thousand, nine hundred sixty-six".