3648564 has 30 divisors (see below), whose sum is σ = 9538914. Its totient is φ = 1216080.

The previous prime is 3648553. The next prime is 3648581. The reversal of 3648564 is 4658463.

3648564 is a `hidden beast` number, since 3 + 648 + 5 + 6 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3640464 + 8100 = 1908^2 + 90^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5307 + ... + 5954.

Almost surely, 2^3648564 is an apocalyptic number.

It is an amenable number.

3648564 is an abundant number, since it is smaller than the sum of its proper divisors (5890350).

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

3648564 is a wasteful number, since it uses less digits than its factorization.

3648564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11277 (or 11266 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 3648564 is about 1910.1214621065. The cubic root of 3648564 is about 153.9479781560.

The spelling of 3648564 in words is "three million, six hundred forty-eight thousand, five hundred sixty-four".