3808165 has 4 divisors (see below), whose sum is σ = 4569804. Its totient is φ = 3046528.

The previous prime is 3808163. The next prime is 3808177. The reversal of 3808165 is 5618083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5618083 = 29 ⋅193727.

It can be written as a sum of positive squares in 2 ways, for example, as 1292769 + 2515396 = 1137^2 + 1586^2 .

It is a cyclic number.

It is not a de Polignac number, because 3808165 - 2¹ = 3808163 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3808163) 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, 380812 + ... + 380821.

It is an arithmetic number, because the mean of its divisors is an integer number (1142451).

Almost surely, 2^3808165 is an apocalyptic number.

It is an amenable number.

3808165 is a deficient number, since it is larger than the sum of its proper divisors (761639).

3808165 is an equidigital number, since it uses as much as digits as its factorization.

3808165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761638.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 3808165 is about 1951.4520234943. The cubic root of 3808165 is about 156.1607618436.

The spelling of 3808165 in words is "three million, eight hundred eight thousand, one hundred sixty-five".