3663403 has 4 divisors (see below), whose sum is σ = 3669280. Its totient is φ = 3657528.

The previous prime is 3663383. The next prime is 3663419. The reversal of 3663403 is 3043663.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3663403 - 2²¹ = 1566251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3663433) 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, 1875 + ... + 3292.

It is an arithmetic number, because the mean of its divisors is an integer number (917320).

Almost surely, 2^3663403 is an apocalyptic number.

3663403 is a deficient number, since it is larger than the sum of its proper divisors (5877).

3663403 is an equidigital number, since it uses as much as digits as its factorization.

3663403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5876.

The product of its (nonzero) digits is 3888, while the sum is 25.

The square root of 3663403 is about 1914.0018286303. The cubic root of 3663403 is about 154.1564020761.

The spelling of 3663403 in words is "three million, six hundred sixty-three thousand, four hundred three".