3765841 has 4 divisors (see below), whose sum is σ = 3800500. Its totient is φ = 3731184.

The previous prime is 3765833. The next prime is 3765871. The reversal of 3765841 is 1485673.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1485673 = 7 ⋅212239.

It can be written as a sum of positive squares in 2 ways, for example, as 3225616 + 540225 = 1796^2 + 735^2 .

It is a cyclic number.

It is not a de Polignac number, because 3765841 - 2³ = 3765833 is a prime.

It is a Duffinian number.

3765841 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3765797 and 3765806.

It is not an unprimeable number, because it can be changed into a prime (3765871) 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, 17166 + ... + 17383.

It is an arithmetic number, because the mean of its divisors is an integer number (950125).

Almost surely, 2^3765841 is an apocalyptic number.

It is an amenable number.

3765841 is a deficient number, since it is larger than the sum of its proper divisors (34659).

3765841 is a wasteful number, since it uses less digits than its factorization.

3765841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34658.

The product of its digits is 20160, while the sum is 34.

The square root of 3765841 is about 1940.5774913669. The cubic root of 3765841 is about 155.5800809592.

The spelling of 3765841 in words is "three million, seven hundred sixty-five thousand, eight hundred forty-one".