3656484 has 54 divisors (see below), whose sum is σ = 10025106. Its totient is φ = 1123200.

The previous prime is 3656483. The next prime is 3656491. The reversal of 3656484 is 4846563.

3656484 is a `hidden beast` number, since 3 + 6 + 5 + 648 + 4 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 129600 + 3526884 = 360^2 + 1878^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3656483) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5784 + ... + 6384.

Almost surely, 2^3656484 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3656484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5012553).

3656484 is an abundant number, since it is smaller than the sum of its proper divisors (6368622).

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

3656484 is a wasteful number, since it uses less digits than its factorization.

3656484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 619 counting only the distinct ones).

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

The square root of 3656484 is about 1912.1935048525. The cubic root of 3656484 is about 154.0592901517.

The spelling of 3656484 in words is "three million, six hundred fifty-six thousand, four hundred eighty-four".