3755665 has 4 divisors (see below), whose sum is σ = 4506804. Its totient is φ = 3004528.

The previous prime is 3755651. The next prime is 3755669. The reversal of 3755665 is 5665573.

3755665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5665573 = 17 ⋅333269.

It can be written as a sum of positive squares in 2 ways, for example, as 1192464 + 2563201 = 1092^2 + 1601^2 .

It is a cyclic number.

It is not a de Polignac number, because 3755665 - 2⁹ = 3755153 is a prime.

It is a d-powerful number, because it can be written as 3⁶ + 7⁶ + 5³ + 5⁵ + 6⁴ + 6⁸ + 5⁹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3755669) 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 3 ways as a sum of consecutive naturals, for example, 375562 + ... + 375571.

It is an arithmetic number, because the mean of its divisors is an integer number (1126701).

Almost surely, 2^3755665 is an apocalyptic number.

It is an amenable number.

3755665 is a deficient number, since it is larger than the sum of its proper divisors (751139).

3755665 is an equidigital number, since it uses as much as digits as its factorization.

3755665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751138.

The product of its digits is 94500, while the sum is 37.

The square root of 3755665 is about 1937.9538178192. The cubic root of 3755665 is about 155.4398191455.

The spelling of 3755665 in words is "three million, seven hundred fifty-five thousand, six hundred sixty-five".