3686946 has 16 divisors (see below), whose sum is σ = 7694784. Its totient is φ = 1175504.

The previous prime is 3686941. The next prime is 3686951. The reversal of 3686946 is 6496863.

3686946 is nontrivially palindromic in base 5.

It is an interprime number because it is at equal distance from previous prime (3686941) and next prime (3686951).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3686898 and 3686907.

It is not an unprimeable number, because it can be changed into a prime (3686941) 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 in 7 ways as a sum of consecutive naturals, for example, 13221 + ... + 13496.

It is an arithmetic number, because the mean of its divisors is an integer number (480924).

Almost surely, 2^3686946 is an apocalyptic number.

3686946 is an abundant number, since it is smaller than the sum of its proper divisors (4007838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3686946 is a wasteful number, since it uses less digits than its factorization.

3686946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26745.

The product of its digits is 186624, while the sum is 42.

The square root of 3686946 is about 1920.1421822355. The cubic root of 3686946 is about 154.4859278561.

The spelling of 3686946 in words is "three million, six hundred eighty-six thousand, nine hundred forty-six".