3681725 has 24 divisors (see below), whose sum is σ = 5029440. Its totient is φ = 2661120.

The previous prime is 3681719. The next prime is 3681731. The reversal of 3681725 is 5271863.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3681719) and next prime (3681731).

It is not a de Polignac number, because 3681725 - 2⁴ = 3681709 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3681691 and 3681700.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 10757 + ... + 11093.

It is an arithmetic number, because the mean of its divisors is an integer number (209560).

Almost surely, 2^3681725 is an apocalyptic number.

It is an amenable number.

3681725 is a deficient number, since it is larger than the sum of its proper divisors (1347715).

3681725 is a wasteful number, since it uses less digits than its factorization.

3681725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 384 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 3681725 is about 1918.7821658542. The cubic root of 3681725 is about 154.4129720772.

The spelling of 3681725 in words is "three million, six hundred eighty-one thousand, seven hundred twenty-five".