3546621 has 12 divisors (see below), whose sum is σ = 5517148. Its totient is φ = 2182464.

The previous prime is 3546619. The next prime is 3546637. The reversal of 3546621 is 1266453.

3546621 is a `hidden beast` number, since 35 + 4 + 6 + 621 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1920996 + 1625625 = 1386^2 + 1275^2 .

It is not a de Polignac number, because 3546621 - 2¹ = 3546619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3546661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15040 + ... + 15273.

Almost surely, 2^3546621 is an apocalyptic number.

It is an amenable number.

3546621 is a deficient number, since it is larger than the sum of its proper divisors (1970527).

3546621 is a wasteful number, since it uses less digits than its factorization.

3546621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30332 (or 30329 counting only the distinct ones).

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

The square root of 3546621 is about 1883.2474611691. The cubic root of 3546621 is about 152.5006145277.

It can be divided in two parts, 35 and 46621, that added together give a 6-th power (46656 = 6⁶).

The spelling of 3546621 in words is "three million, five hundred forty-six thousand, six hundred twenty-one".