3745685 has 4 divisors (see below), whose sum is σ = 4494828. Its totient is φ = 2996544.

The previous prime is 3745663. The next prime is 3745691. The reversal of 3745685 is 5865473.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1214404 + 2531281 = 1102^2 + 1591^2 .

It is a cyclic number.

It is not a de Polignac number, because 3745685 - 2¹⁰ = 3744661 is a prime.

It is a super-2 number, since 2×3745685² = 28060312238450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374564 + ... + 374573.

It is an arithmetic number, because the mean of its divisors is an integer number (1123707).

Almost surely, 2^3745685 is an apocalyptic number.

It is an amenable number.

3745685 is a deficient number, since it is larger than the sum of its proper divisors (749143).

3745685 is an equidigital number, since it uses as much as digits as its factorization.

3745685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749142.

The product of its digits is 100800, while the sum is 38.

The square root of 3745685 is about 1935.3772242124. The cubic root of 3745685 is about 155.3020126126.

The spelling of 3745685 in words is "three million, seven hundred forty-five thousand, six hundred eighty-five".