3656329 has 2 divisors, whose sum is σ = 3656330. Its totient is φ = 3656328.

The previous prime is 3656327. The next prime is 3656353. The reversal of 3656329 is 9236563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2496400 + 1159929 = 1580^2 + 1077^2 .

It is a cyclic number.

It is not a de Polignac number, because 3656329 - 2¹ = 3656327 is a prime.

Together with 3656327, it forms a pair of twin primes.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 3656294 and 3656303.

It is not a weakly prime, because it can be changed into another prime (3656321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1828164 + 1828165.

It is an arithmetic number, because the mean of its divisors is an integer number (1828165).

Almost surely, 2^3656329 is an apocalyptic number.

It is an amenable number.

3656329 is a deficient number, since it is larger than the sum of its proper divisors (1).

3656329 is an equidigital number, since it uses as much as digits as its factorization.

3656329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 34.

The square root of 3656329 is about 1912.1529750519. The cubic root of 3656329 is about 154.0571132401.

It can be divided in two parts, 36 and 56329, that added together give a palindrome (56365).

The spelling of 3656329 in words is "three million, six hundred fifty-six thousand, three hundred twenty-nine".