3663423 has 6 divisors (see below), whose sum is σ = 5291624. Its totient is φ = 2442276.

The previous prime is 3663421. The next prime is 3663427. The reversal of 3663423 is 3243663.

3663423 is a `hidden beast` number, since 3 + 6 + 634 + 23 = 666.

It is not a de Polignac number, because 3663423 - 2¹ = 3663421 is a prime.

It is a d-powerful number, because it can be written as 3⁶ + 6⁶ + 6⁷ + 3¹³ + 4⁷ + 2¹⁷ + 3¹³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3663421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 203515 + ... + 203532.

Almost surely, 2^3663423 is an apocalyptic number.

3663423 is a deficient number, since it is larger than the sum of its proper divisors (1628201).

3663423 is a wasteful number, since it uses less digits than its factorization.

3663423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407053 (or 407050 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

The square root of 3663423 is about 1914.0070532785. The cubic root of 3663423 is about 154.1566826097.

Subtracting from 3663423 its sum of digits (27), we obtain a square (3663396 = 1914²).

The spelling of 3663423 in words is "three million, six hundred sixty-three thousand, four hundred twenty-three".