3941565 has 16 divisors (see below), whose sum is σ = 6397056. Its totient is φ = 2072000.

The previous prime is 3941551. The next prime is 3941611. The reversal of 3941565 is 5651493.

It is a happy number.

It is not a de Polignac number, because 3941565 - 2⁷ = 3941437 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 786 + ... + 2915.

It is an arithmetic number, because the mean of its divisors is an integer number (399816).

Almost surely, 2^3941565 is an apocalyptic number.

It is an amenable number.

3941565 is a deficient number, since it is larger than the sum of its proper divisors (2455491).

3941565 is a wasteful number, since it uses less digits than its factorization.

3941565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3780.

The product of its digits is 16200, while the sum is 33.

The square root of 3941565 is about 1985.3375027939. The cubic root of 3941565 is about 157.9633119965.

The spelling of 3941565 in words is "three million, nine hundred forty-one thousand, five hundred sixty-five".