3553668 has 18 divisors (see below), whose sum is σ = 8982974. Its totient is φ = 1184544.

The previous prime is 3553601. The next prime is 3553673. The reversal of 3553668 is 8663553.

3553668 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3504384 + 49284 = 1872^2 + 222^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 98713 = 3553668 / (3 + 5 + 5 + 3 + 6 + 6 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49321 + ... + 49392.

Almost surely, 2^3553668 is an apocalyptic number.

It is an amenable number.

3553668 is an abundant number, since it is smaller than the sum of its proper divisors (5429306).

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

3553668 is a wasteful number, since it uses less digits than its factorization.

3553668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98723 (or 98718 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 3553668 is about 1885.1175029690. The cubic root of 3553668 is about 152.6015519963.

The spelling of 3553668 in words is "three million, five hundred fifty-three thousand, six hundred sixty-eight".