3621654 has 12 divisors (see below), whose sum is σ = 7846956. Its totient is φ = 1207212.

The previous prime is 3621643. The next prime is 3621661. The reversal of 3621654 is 4561263.

3621654 is a `hidden beast` number, since 3 + 6 + 2 + 1 + 654 = 666.

3621654 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 100584 + ... + 100619.

It is an arithmetic number, because the mean of its divisors is an integer number (653913).

Almost surely, 2^3621654 is an apocalyptic number.

3621654 is an abundant number, since it is smaller than the sum of its proper divisors (4225302).

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

3621654 is a wasteful number, since it uses less digits than its factorization.

3621654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201211 (or 201208 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 3621654 is about 1903.0643709554. The cubic root of 3621654 is about 153.5685624951.

It can be divided in two parts, 362 and 1654, that added together give a triangular number (2016 = T₆₃).

The spelling of 3621654 in words is "three million, six hundred twenty-one thousand, six hundred fifty-four".