3668785 has 4 divisors (see below), whose sum is σ = 4402548. Its totient is φ = 2935024.

The previous prime is 3668759. The next prime is 3668801. The reversal of 3668785 is 5878663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5878663 = 7 ⋅839809.

It can be written as a sum of positive squares in 2 ways, for example, as 1147041 + 2521744 = 1071^2 + 1588^2 .

It is a cyclic number.

It is not a de Polignac number, because 3668785 - 2¹⁷ = 3537713 is a prime.

It is a Duffinian 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, 366874 + ... + 366883.

It is an arithmetic number, because the mean of its divisors is an integer number (1100637).

Almost surely, 2^3668785 is an apocalyptic number.

It is an amenable number.

3668785 is a deficient number, since it is larger than the sum of its proper divisors (733763).

3668785 is an equidigital number, since it uses as much as digits as its factorization.

3668785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733762.

The product of its digits is 241920, while the sum is 43.

The square root of 3668785 is about 1915.4072673977. The cubic root of 3668785 is about 154.2318568551.

The spelling of 3668785 in words is "three million, six hundred sixty-eight thousand, seven hundred eighty-five".