3668518 has 16 divisors (see below), whose sum is σ = 6384384. Its totient is φ = 1548360.

The previous prime is 3668507. The next prime is 3668531. The reversal of 3668518 is 8158663.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1018 + ... + 2893.

It is an arithmetic number, because the mean of its divisors is an integer number (399024).

Almost surely, 2^3668518 is an apocalyptic number.

3668518 is a deficient number, since it is larger than the sum of its proper divisors (2715866).

3668518 is a wasteful number, since it uses less digits than its factorization.

3668518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3987.

The product of its digits is 34560, while the sum is 37.

The square root of 3668518 is about 1915.3375681587. The cubic root of 3668518 is about 154.2281152980.

It can be divided in two parts, 3668 and 518, that added together give a triangular number (4186 = T₉₁).

The spelling of 3668518 in words is "three million, six hundred sixty-eight thousand, five hundred eighteen".