3680385 has 16 divisors (see below), whose sum is σ = 5945280. Its totient is φ = 1944000.

The previous prime is 3680371. The next prime is 3680399. The reversal of 3680385 is 5830863.

It is an interprime number because it is at equal distance from previous prime (3680371) and next prime (3680399).

It is not a de Polignac number, because 3680385 - 2⁶ = 3680321 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 510 + ... + 2760.

It is an arithmetic number, because the mean of its divisors is an integer number (371580).

Almost surely, 2^3680385 is an apocalyptic number.

It is an amenable number.

3680385 is a deficient number, since it is larger than the sum of its proper divisors (2264895).

3680385 is a wasteful number, since it uses less digits than its factorization.

3680385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 3680385 is about 1918.4329542624. The cubic root of 3680385 is about 154.3942364310.

The spelling of 3680385 in words is "three million, six hundred eighty thousand, three hundred eighty-five".