3663329 has 4 divisors (see below), whose sum is σ = 3704580. Its totient is φ = 3622080.

The previous prime is 3663323. The next prime is 3663337. The reversal of 3663329 is 9233663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9233663 = 137 ⋅67399.

It can be written as a sum of positive squares in 2 ways, for example, as 1638400 + 2024929 = 1280^2 + 1423^2 .

It is a cyclic number.

It is not a de Polignac number, because 3663329 - 2⁸ = 3663073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3663295 and 3663304.

It is not an unprimeable number, because it can be changed into a prime (3663323) 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, 20492 + ... + 20669.

It is an arithmetic number, because the mean of its divisors is an integer number (926145).

Almost surely, 2^3663329 is an apocalyptic number.

It is an amenable number.

3663329 is a deficient number, since it is larger than the sum of its proper divisors (41251).

3663329 is an equidigital number, since it uses as much as digits as its factorization.

3663329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41250.

The product of its digits is 17496, while the sum is 32.

The square root of 3663329 is about 1913.9824973076. The cubic root of 3663329 is about 154.1553640931.

The spelling of 3663329 in words is "three million, six hundred sixty-three thousand, three hundred twenty-nine".