3685669 has 8 divisors (see below), whose sum is σ = 3984120. Its totient is φ = 3389376.

The previous prime is 3685663. The next prime is 3685687. The reversal of 3685669 is 9665863.

3685669 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 4 ways, for example, as 56644 + 3629025 = 238^2 + 1905^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3685669 - 2⁷ = 3685541 is a prime.

It is a super-2 number, since 2×3685669² = 27168311955122, which contains 22 as substring.

It is a Duffinian number.

3685669 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3685663) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6339 + ... + 6895.

It is an arithmetic number, because the mean of its divisors is an integer number (498015).

Almost surely, 2^3685669 is an apocalyptic number.

It is an amenable number.

3685669 is a deficient number, since it is larger than the sum of its proper divisors (298451).

3685669 is a wasteful number, since it uses less digits than its factorization.

3685669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079.

The product of its digits is 233280, while the sum is 43.

The square root of 3685669 is about 1919.8096259786. The cubic root of 3685669 is about 154.4680900294.

The spelling of 3685669 in words is "three million, six hundred eighty-five thousand, six hundred sixty-nine".