3686546 has 4 divisors (see below), whose sum is σ = 5529822. Its totient is φ = 1843272.

The previous prime is 3686537. The next prime is 3686549. The reversal of 3686546 is 6456863.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3667225 + 19321 = 1915^2 + 139^2 .

It is not an unprimeable number, because it can be changed into a prime (3686549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 921635 + ... + 921638.

Almost surely, 2^3686546 is an apocalyptic number.

3686546 is a deficient number, since it is larger than the sum of its proper divisors (1843276).

3686546 is a wasteful number, since it uses less digits than its factorization.

3686546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843275.

The product of its digits is 103680, while the sum is 38.

The square root of 3686546 is about 1920.0380204569. The cubic root of 3686546 is about 154.4803408828.

The spelling of 3686546 in words is "three million, six hundred eighty-six thousand, five hundred forty-six".