3665522 has 8 divisors (see below), whose sum is σ = 6283776. Its totient is φ = 1570932.

The previous prime is 3665509. The next prime is 3665527. The reversal of 3665522 is 2255663.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3665527) 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, 130898 + ... + 130925.

It is an arithmetic number, because the mean of its divisors is an integer number (785472).

Almost surely, 2^3665522 is an apocalyptic number.

3665522 is a deficient number, since it is larger than the sum of its proper divisors (2618254).

3665522 is a wasteful number, since it uses less digits than its factorization.

3665522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261832.

The product of its digits is 10800, while the sum is 29.

The square root of 3665522 is about 1914.5553008466. Note that the first 3 decimals coincide. The cubic root of 3665522 is about 154.1861189317.

The spelling of 3665522 in words is "three million, six hundred sixty-five thousand, five hundred twenty-two".