3649558 has 16 divisors (see below), whose sum is σ = 6287040. Its totient is φ = 1571400.

The previous prime is 3649549. The next prime is 3649559. The reversal of 3649558 is 8559463.

3649558 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3649558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3948 + ... + 4783.

It is an arithmetic number, because the mean of its divisors is an integer number (392940).

Almost surely, 2^3649558 is an apocalyptic number.

3649558 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3649558 is a deficient number, since it is larger than the sum of its proper divisors (2637482).

3649558 is a wasteful number, since it uses less digits than its factorization.

3649558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8763.

The product of its digits is 129600, while the sum is 40.

The square root of 3649558 is about 1910.3816372652. The cubic root of 3649558 is about 153.9619572078.

It can be divided in two parts, 36 and 49558, that added together give a palindrome (49594).

The spelling of 3649558 in words is "three million, six hundred forty-nine thousand, five hundred fifty-eight".