3656039 has 2 divisors, whose sum is σ = 3656040. Its totient is φ = 3656038.

The previous prime is 3656033. The next prime is 3656069. The reversal of 3656039 is 9306563.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3656039 - 2⁸ = 3655783 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3655996 and 3656014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3656033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1828019 + 1828020.

It is an arithmetic number, because the mean of its divisors is an integer number (1828020).

Almost surely, 2^3656039 is an apocalyptic number.

3656039 is a deficient number, since it is larger than the sum of its proper divisors (1).

3656039 is an equidigital number, since it uses as much as digits as its factorization.

3656039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 32.

The square root of 3656039 is about 1912.0771427952. The cubic root of 3656039 is about 154.0530401434.

The spelling of 3656039 in words is "three million, six hundred fifty-six thousand, thirty-nine".