3656041 has 4 divisors (see below), whose sum is σ = 3702400. Its totient is φ = 3609684.

The previous prime is 3656039. The next prime is 3656069. The reversal of 3656041 is 1406563.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3656041 - 2¹ = 3656039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3655997 and 3656015.

It is not an unprimeable number, because it can be changed into a prime (3656141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23061 + ... + 23218.

It is an arithmetic number, because the mean of its divisors is an integer number (925600).

Almost surely, 2^3656041 is an apocalyptic number.

It is an amenable number.

3656041 is a deficient number, since it is larger than the sum of its proper divisors (46359).

3656041 is an equidigital number, since it uses as much as digits as its factorization.

3656041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46358.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 3656041 is about 1912.0776657866. The cubic root of 3656041 is about 154.0530682345.

The spelling of 3656041 in words is "three million, six hundred fifty-six thousand, forty-one".