3663523 has 4 divisors (see below), whose sum is σ = 3856360. Its totient is φ = 3470688.

The previous prime is 3663503. The next prime is 3663533. The reversal of 3663523 is 3253663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3253663 = 7 ⋅464809.

It is a cyclic number.

It is not a de Polignac number, because 3663523 - 2²¹ = 1566371 is a prime.

It is a Duffinian number.

3663523 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3663491 and 3663500.

It is not an unprimeable number, because it can be changed into a prime (3663503) 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, 96390 + ... + 96427.

It is an arithmetic number, because the mean of its divisors is an integer number (964090).

Almost surely, 2^3663523 is an apocalyptic number.

3663523 is a deficient number, since it is larger than the sum of its proper divisors (192837).

3663523 is a wasteful number, since it uses less digits than its factorization.

3663523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192836.

The product of its digits is 9720, while the sum is 28.

The square root of 3663523 is about 1914.0331763060. The cubic root of 3663523 is about 154.1580852621.

It can be divided in two parts, 3663 and 523, that added together give a triangular number (4186 = T₉₁).

The spelling of 3663523 in words is "three million, six hundred sixty-three thousand, five hundred twenty-three".