3665673 has 24 divisors (see below), whose sum is σ = 5880576. Its totient is φ = 2181600.

The previous prime is 3665653. The next prime is 3665677. The reversal of 3665673 is 3765663.

It is not a de Polignac number, because 3665673 - 2⁶ = 3665609 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3665677) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5736 + ... + 6342.

It is an arithmetic number, because the mean of its divisors is an integer number (245024).

Almost surely, 2^3665673 is an apocalyptic number.

3665673 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3665673 is a deficient number, since it is larger than the sum of its proper divisors (2214903).

3665673 is a wasteful number, since it uses less digits than its factorization.

3665673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685 (or 682 counting only the distinct ones).

The product of its digits is 68040, while the sum is 36.

The square root of 3665673 is about 1914.5947351855. The cubic root of 3665673 is about 154.1882361185.

The spelling of 3665673 in words is "three million, six hundred sixty-five thousand, six hundred seventy-three".