3685312 has 28 divisors (see below), whose sum is σ = 7406640. Its totient is φ = 1819136.

The previous prime is 3685309. The next prime is 3685327. The reversal of 3685312 is 2135863.

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, 5373 + ... + 6019.

Almost surely, 2^3685312 is an apocalyptic number.

3685312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3685312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3703320).

3685312 is an abundant number, since it is smaller than the sum of its proper divisors (3721328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3685312 is an equidigital number, since it uses as much as digits as its factorization.

3685312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748 (or 738 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 3685312 is about 1919.7166457579. The cubic root of 3685312 is about 154.4631025234.

The spelling of 3685312 in words is "three million, six hundred eighty-five thousand, three hundred twelve".