3663550 has 24 divisors (see below), whose sum is σ = 7434792. Its totient is φ = 1332000.

The previous prime is 3663547. The next prime is 3663559. The reversal of 3663550 is 553663.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3663559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2781 + ... + 3880.

It is an arithmetic number, because the mean of its divisors is an integer number (309783).

Almost surely, 2^3663550 is an apocalyptic number.

3663550 is an abundant number, since it is smaller than the sum of its proper divisors (3771242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3663550 is a wasteful number, since it uses less digits than its factorization.

3663550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6684 (or 6679 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 3663550 is about 1914.0402294623. The cubic root of 3663550 is about 154.1584639739.

It can be divided in two parts, 366 and 3550, that added together give a triangular number (3916 = T₈₈).

The spelling of 3663550 in words is "three million, six hundred sixty-three thousand, five hundred fifty".