3877665 has 32 divisors (see below), whose sum is σ = 6884352. Its totient is φ = 1848000.

The previous prime is 3877663. The next prime is 3877667. The reversal of 3877665 is 5667783.

3877665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3877663) and next prime (3877667).

It is not a de Polignac number, because 3877665 - 2¹ = 3877663 is a prime.

3877665 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3877663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11550 + ... + 11880.

It is an arithmetic number, because the mean of its divisors is an integer number (215136).

Almost surely, 2^3877665 is an apocalyptic number.

It is an amenable number.

3877665 is a deficient number, since it is larger than the sum of its proper divisors (3006687).

3877665 is a wasteful number, since it uses less digits than its factorization.

3877665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421.

The product of its digits is 211680, while the sum is 42.

The square root of 3877665 is about 1969.1787628349. The cubic root of 3877665 is about 157.1050320216.

The spelling of 3877665 in words is "three million, eight hundred seventy-seven thousand, six hundred sixty-five".