3683870387 has 4 divisors (see below), whose sum is σ = 3762250656. Its totient is φ = 3605490120.

The previous prime is 3683870383. The next prime is 3683870389. The reversal of 3683870387 is 7830783863.

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 3683870387 - 2² = 3683870383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3683870383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39190064 + ... + 39190157.

It is an arithmetic number, because the mean of its divisors is an integer number (940562664).

Almost surely, 2^3683870387 is an apocalyptic number.

3683870387 is a deficient number, since it is larger than the sum of its proper divisors (78380269).

3683870387 is an equidigital number, since it uses as much as digits as its factorization.

3683870387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78380268.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The square root of 3683870387 is about 60694.8958891932. The cubic root of 3683870387 is about 1544.4295904049.

The spelling of 3683870387 in words is "three billion, six hundred eighty-three million, eight hundred seventy thousand, three hundred eighty-seven".