3643888 has 10 divisors (see below), whose sum is σ = 7060064. Its totient is φ = 1821936.

The previous prime is 3643883. The next prime is 3643891. The reversal of 3643888 is 8883463.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3643888.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3643883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113856 + ... + 113887.

Almost surely, 2^3643888 is an apocalyptic number.

It is an amenable number.

3643888 is a deficient number, since it is larger than the sum of its proper divisors (3416176).

3643888 is a wasteful number, since it uses less digits than its factorization.

3643888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227751 (or 227745 counting only the distinct ones).

The product of its digits is 110592, while the sum is 40.

The square root of 3643888 is about 1908.8970637517. The cubic root of 3643888 is about 153.8821834589.

The spelling of 3643888 in words is "three million, six hundred forty-three thousand, eight hundred eighty-eight".