3685816 has 16 divisors (see below), whose sum is σ = 6965640. Its totient is φ = 1828320.

The previous prime is 3685811. The next prime is 3685837. The reversal of 3685816 is 6185863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3685811) 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, 711 + ... + 2806.

Almost surely, 2^3685816 is an apocalyptic number.

It is an amenable number.

3685816 is a deficient number, since it is larger than the sum of its proper divisors (3279824).

3685816 is a wasteful number, since it uses less digits than its factorization.

3685816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3654 (or 3650 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 3685816 is about 1919.8479106429. The cubic root of 3685816 is about 154.4701436148.

The spelling of 3685816 in words is "three million, six hundred eighty-five thousand, eight hundred sixteen".