3725685 has 12 divisors (see below), whose sum is σ = 6457932. Its totient is φ = 1987008.

The previous prime is 3725681. The next prime is 3725693. The reversal of 3725685 is 5865273.

It can be written as a sum of positive squares in 2 ways, for example, as 2377764 + 1347921 = 1542^2 + 1161^2 .

It is not a de Polignac number, because 3725685 - 2² = 3725681 is a prime.

3725685 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3725681) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 41352 + ... + 41441.

It is an arithmetic number, because the mean of its divisors is an integer number (538161).

Almost surely, 2^3725685 is an apocalyptic number.

It is an amenable number.

3725685 is a deficient number, since it is larger than the sum of its proper divisors (2732247).

3725685 is a wasteful number, since it uses less digits than its factorization.

3725685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82804 (or 82801 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 3725685 is about 1930.2033571621. The cubic root of 3725685 is about 155.0251086622.

The spelling of 3725685 in words is "three million, seven hundred twenty-five thousand, six hundred eighty-five".