3648705 has 16 divisors (see below), whose sum is σ = 5863104. Its totient is φ = 1937600.

The previous prime is 3648691. The next prime is 3648707. The reversal of 3648705 is 5078463.

It is not a de Polignac number, because 3648705 - 2¹⁶ = 3583169 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3648707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4855 + ... + 5555.

It is an arithmetic number, because the mean of its divisors is an integer number (366444).

Almost surely, 2^3648705 is an apocalyptic number.

It is an amenable number.

3648705 is a deficient number, since it is larger than the sum of its proper divisors (2214399).

3648705 is a wasteful number, since it uses less digits than its factorization.

3648705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 3648705 is about 1910.1583703976. The cubic root of 3648705 is about 153.9499612545.

The spelling of 3648705 in words is "three million, six hundred forty-eight thousand, seven hundred five".