3660705 has 12 divisors (see below), whose sum is σ = 6345300. Its totient is φ = 1952352.

The previous prime is 3660677. The next prime is 3660707. The reversal of 3660705 is 5070663.

It can be written as a sum of positive squares in 2 ways, for example, as 463761 + 3196944 = 681^2 + 1788^2 .

It is not a de Polignac number, because 3660705 - 2¹⁴ = 3644321 is a prime.

It is a super-2 number, since 2×3660705² = 26801522194050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3660707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40630 + ... + 40719.

It is an arithmetic number, because the mean of its divisors is an integer number (528775).

Almost surely, 2^3660705 is an apocalyptic number.

It is an amenable number.

3660705 is a deficient number, since it is larger than the sum of its proper divisors (2684595).

3660705 is a wasteful number, since it uses less digits than its factorization.

3660705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81360 (or 81357 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 3660705 is about 1913.2968928005. The cubic root of 3660705 is about 154.1185487361.

The spelling of 3660705 in words is "three million, six hundred sixty thousand, seven hundred five".