3665697 has 16 divisors (see below), whose sum is σ = 5623680. Its totient is φ = 2080512.

The previous prime is 3665677. The next prime is 3665731. The reversal of 3665697 is 7965663.

It is not a de Polignac number, because 3665697 - 2⁶ = 3665633 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 3129 + ... + 4137.

It is an arithmetic number, because the mean of its divisors is an integer number (351480).

Almost surely, 2^3665697 is an apocalyptic number.

It is an amenable number.

3665697 is a deficient number, since it is larger than the sum of its proper divisors (1957983).

3665697 is a wasteful number, since it uses less digits than its factorization.

3665697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192.

The product of its digits is 204120, while the sum is 42.

The square root of 3665697 is about 1914.6010028202. The cubic root of 3665697 is about 154.1885726197.

The spelling of 3665697 in words is "three million, six hundred sixty-five thousand, six hundred ninety-seven".