3666695 has 4 divisors (see below), whose sum is σ = 4400040. Its totient is φ = 2933352.

The previous prime is 3666661. The next prime is 3666703. The reversal of 3666695 is 5966663.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3666695 - 2¹⁸ = 3404551 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366665 + ... + 366674.

It is an arithmetic number, because the mean of its divisors is an integer number (1100010).

Almost surely, 2^3666695 is an apocalyptic number.

3666695 is a deficient number, since it is larger than the sum of its proper divisors (733345).

3666695 is an equidigital number, since it uses as much as digits as its factorization.

3666695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733344.

The product of its digits is 174960, while the sum is 41.

The square root of 3666695 is about 1914.8616137988. The cubic root of 3666695 is about 154.2025641591.

Subtracting 3666695 from its reverse (5966663), we obtain a cube (2299968 = 132³).

The spelling of 3666695 in words is "three million, six hundred sixty-six thousand, six hundred ninety-five".