3665236 has 12 divisors (see below), whose sum is σ = 6570900. Its totient is φ = 1787840.

The previous prime is 3665227. The next prime is 3665237. The reversal of 3665236 is 6325663.

It can be written as a sum of positive squares in 2 ways, for example, as 352836 + 3312400 = 594^2 + 1820^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3665198 and 3665207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3665237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11011 + ... + 11338.

It is an arithmetic number, because the mean of its divisors is an integer number (547575).

Almost surely, 2^3665236 is an apocalyptic number.

It is an amenable number.

3665236 is a deficient number, since it is larger than the sum of its proper divisors (2905664).

3665236 is a wasteful number, since it uses less digits than its factorization.

3665236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22394 (or 22392 counting only the distinct ones).

The product of its digits is 19440, while the sum is 31.

The square root of 3665236 is about 1914.4806084158. The cubic root of 3665236 is about 154.1821087365.

The spelling of 3665236 in words is "three million, six hundred sixty-five thousand, two hundred thirty-six".