3645996 has 24 divisors (see below), whose sum is σ = 8801520. Its totient is φ = 1173312.

The previous prime is 3645979. The next prime is 3645997. The reversal of 3645996 is 6995463.

3645996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 3⁸ + 6² + 4² + 5⁹ + 9² + 9⁴ + 6⁸ .

It is not an unprimeable number, because it can be changed into a prime (3645997) 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, 4891 + ... + 5586.

It is an arithmetic number, because the mean of its divisors is an integer number (366730).

Almost surely, 2^3645996 is an apocalyptic number.

It is an amenable number.

3645996 is an abundant number, since it is smaller than the sum of its proper divisors (5155524).

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

3645996 is a wasteful number, since it uses less digits than its factorization.

3645996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10513 (or 10511 counting only the distinct ones).

The product of its digits is 174960, while the sum is 42.

The square root of 3645996 is about 1909.4491352220. The cubic root of 3645996 is about 153.9118515049.

The spelling of 3645996 in words is "three million, six hundred forty-five thousand, nine hundred ninety-six".