3680725 has 6 divisors (see below), whose sum is σ = 4564130. Its totient is φ = 2944560.

The previous prime is 3680681. The next prime is 3680741. The reversal of 3680725 is 5270863.

3680725 is digitally balanced in base 2, 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 3 ways, for example, as 576081 + 3104644 = 759^2 + 1762^2 .

It is not a de Polignac number, because 3680725 - 2⁹ = 3680213 is a prime.

3680725 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73590 + ... + 73639.

Almost surely, 2^3680725 is an apocalyptic number.

It is an amenable number.

3680725 is a deficient number, since it is larger than the sum of its proper divisors (883405).

3680725 is a wasteful number, since it uses less digits than its factorization.

3680725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147239 (or 147234 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 3680725 is about 1918.5215662066. The cubic root of 3680725 is about 154.3989906822.

The spelling of 3680725 in words is "three million, six hundred eighty thousand, seven hundred twenty-five".