3685786 has 8 divisors (see below), whose sum is σ = 5954004. Its totient is φ = 1701120.

The previous prime is 3685783. The next prime is 3685811. The reversal of 3685786 is 6875863.

It can be written as a sum of positive squares in 2 ways, for example, as 3222025 + 463761 = 1795^2 + 681^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3685783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70855 + ... + 70906.

Almost surely, 2^3685786 is an apocalyptic number.

3685786 is a deficient number, since it is larger than the sum of its proper divisors (2268218).

3685786 is a wasteful number, since it uses less digits than its factorization.

3685786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141776.

The product of its digits is 241920, while the sum is 43.

The square root of 3685786 is about 1919.8400975081. The cubic root of 3685786 is about 154.4697245202.

The spelling of 3685786 in words is "three million, six hundred eighty-five thousand, seven hundred eighty-six".