3663345 has 32 divisors (see below), whose sum is σ = 6773760. Its totient is φ = 1656000.

The previous prime is 3663343. The next prime is 3663377. The reversal of 3663345 is 5433663.

It is not a de Polignac number, because 3663345 - 2¹ = 3663343 is a prime.

Its product of digits (19440) is a multiple of the sum of its prime divisors (405).

It is a Curzon number.

3663345 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3663343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14470 + ... + 14720.

It is an arithmetic number, because the mean of its divisors is an integer number (211680).

Almost surely, 2^3663345 is an apocalyptic number.

3663345 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3663345 is a deficient number, since it is larger than the sum of its proper divisors (3110415).

3663345 is a wasteful number, since it uses less digits than its factorization.

3663345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405.

The product of its digits is 19440, while the sum is 30.

The square root of 3663345 is about 1913.9866770696. The cubic root of 3663345 is about 154.1555885230.

The spelling of 3663345 in words is "three million, six hundred sixty-three thousand, three hundred forty-five".