3668545 has 16 divisors (see below), whose sum is σ = 4574592. Its totient is φ = 2822400.

The previous prime is 3668543. The next prime is 3668563. The reversal of 3668545 is 5458663.

It is not a de Polignac number, because 3668545 - 2¹ = 3668543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3668543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24220 + ... + 24370.

It is an arithmetic number, because the mean of its divisors is an integer number (285912).

Almost surely, 2^3668545 is an apocalyptic number.

It is an amenable number.

3668545 is a deficient number, since it is larger than the sum of its proper divisors (906047).

3668545 is a wasteful number, since it uses less digits than its factorization.

3668545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312.

The product of its digits is 86400, while the sum is 37.

The square root of 3668545 is about 1915.3446165116. The cubic root of 3668545 is about 154.2284936660.

It can be divided in two parts, 366 and 8545, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 3668545 in words is "three million, six hundred sixty-eight thousand, five hundred forty-five".