3681736 has 8 divisors (see below), whose sum is σ = 6903270. Its totient is φ = 1840864.

The previous prime is 3681731. The next prime is 3681749. The reversal of 3681736 is 6371863.

3681736 is digitally balanced in base 5, 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 only one way, i.e., 2579236 + 1102500 = 1606^2 + 1050^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (3681731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230101 + ... + 230116.

Almost surely, 2^3681736 is an apocalyptic number.

It is an amenable number.

3681736 is a deficient number, since it is larger than the sum of its proper divisors (3221534).

3681736 is a wasteful number, since it uses less digits than its factorization.

3681736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460223 (or 460219 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 3681736 is about 1918.7850322535. The cubic root of 3681736 is about 154.4131258584.

The spelling of 3681736 in words is "three million, six hundred eighty-one thousand, seven hundred thirty-six".