3808665 has 48 divisors (see below), whose sum is σ = 7682688. Its totient is φ = 1709568.

The previous prime is 3808591. The next prime is 3808667. The reversal of 3808665 is 5668083.

It is not a de Polignac number, because 3808665 - 2¹¹ = 3806617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3808667) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33649 + ... + 33761.

It is an arithmetic number, because the mean of its divisors is an integer number (160056).

Almost surely, 2^3808665 is an apocalyptic number.

3808665 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3808665 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

3808665 is a wasteful number, since it uses less digits than its factorization.

3808665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 3808665 is about 1951.5801290237. The cubic root of 3808665 is about 156.1675960156.

It can be divided in two parts, 380 and 8665, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 3808665 in words is "three million, eight hundred eight thousand, six hundred sixty-five".