3663697 has 4 divisors (see below), whose sum is σ = 3741696. Its totient is φ = 3585700.

The previous prime is 3663691. The next prime is 3663707. The reversal of 3663697 is 7963663.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3663697 - 2³ = 3663689 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3663691) 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, 38929 + ... + 39022.

It is an arithmetic number, because the mean of its divisors is an integer number (935424).

Almost surely, 2^3663697 is an apocalyptic number.

It is an amenable number.

3663697 is a deficient number, since it is larger than the sum of its proper divisors (77999).

3663697 is an equidigital number, since it uses as much as digits as its factorization.

3663697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77998.

The product of its digits is 122472, while the sum is 40.

The square root of 3663697 is about 1914.0786295239. The cubic root of 3663697 is about 154.1605258166.

The spelling of 3663697 in words is "three million, six hundred sixty-three thousand, six hundred ninety-seven".