3665672 has 16 divisors (see below), whose sum is σ = 6912000. Its totient is φ = 1822480.

The previous prime is 3665653. The next prime is 3665677. The reversal of 3665672 is 2765663.

It is a super-3 number, since 3×3665672³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3665677) 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 3 ways as a sum of consecutive naturals, for example, 329 + ... + 2727.

It is an arithmetic number, because the mean of its divisors is an integer number (432000).

Almost surely, 2^3665672 is an apocalyptic number.

It is an amenable number.

3665672 is a deficient number, since it is larger than the sum of its proper divisors (3246328).

3665672 is a wasteful number, since it uses less digits than its factorization.

3665672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2596 (or 2592 counting only the distinct ones).

The product of its digits is 45360, while the sum is 35.

The square root of 3665672 is about 1914.5944740336. The cubic root of 3665672 is about 154.1882220976.

Subtracting from 3665672 its reverse (2765663), we obtain a palindrome (900009).

The spelling of 3665672 in words is "three million, six hundred sixty-five thousand, six hundred seventy-two".