3680387 has 4 divisors (see below), whose sum is σ = 3688800. Its totient is φ = 3671976.

The previous prime is 3680371. The next prime is 3680399. The reversal of 3680387 is 7830863.

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 3680387 - 2⁴ = 3680371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3680987) 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, 3512 + ... + 4437.

It is an arithmetic number, because the mean of its divisors is an integer number (922200).

Almost surely, 2^3680387 is an apocalyptic number.

3680387 is a deficient number, since it is larger than the sum of its proper divisors (8413).

3680387 is an equidigital number, since it uses as much as digits as its factorization.

3680387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8412.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 3680387 is about 1918.4334755211. The cubic root of 3680387 is about 154.3942643981.

The spelling of 3680387 in words is "three million, six hundred eighty thousand, three hundred eighty-seven".