3648518 has 4 divisors (see below), whose sum is σ = 5472780. Its totient is φ = 1824258.

The previous prime is 3648511. The next prime is 3648521. The reversal of 3648518 is 8158463.

3648518 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3648511) 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 as a sum of consecutive naturals, namely, 912128 + ... + 912131.

It is an arithmetic number, because the mean of its divisors is an integer number (1368195).

Almost surely, 2^3648518 is an apocalyptic number.

3648518 is a deficient number, since it is larger than the sum of its proper divisors (1824262).

3648518 is a wasteful number, since it uses less digits than its factorization.

3648518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824261.

The product of its digits is 23040, while the sum is 35.

The square root of 3648518 is about 1910.1094209495. The cubic root of 3648518 is about 153.9473311766.

The spelling of 3648518 in words is "three million, six hundred forty-eight thousand, five hundred eighteen".