3685829 has 24 divisors (see below), whose sum is σ = 4678560. Its totient is φ = 2884896.

The previous prime is 3685811. The next prime is 3685837. The reversal of 3685829 is 9285863.

It is not a de Polignac number, because 3685829 - 2¹⁶ = 3620293 is a prime.

It is a super-3 number, since 3×3685829³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3685849) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34394 + ... + 34500.

It is an arithmetic number, because the mean of its divisors is an integer number (194940).

Almost surely, 2^3685829 is an apocalyptic number.

It is an amenable number.

3685829 is a deficient number, since it is larger than the sum of its proper divisors (992731).

3685829 is a wasteful number, since it uses less digits than its factorization.

3685829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 170 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 3685829 is about 1919.8512963248. The cubic root of 3685829 is about 154.4703252217.

The spelling of 3685829 in words is "three million, six hundred eighty-five thousand, eight hundred twenty-nine".