3656231 has 2 divisors, whose sum is σ = 3656232. Its totient is φ = 3656230.

The previous prime is 3656183. The next prime is 3656239. The reversal of 3656231 is 1326563.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3656231 - 2¹⁴ = 3639847 is a prime.

It is a super-2 number, since 2×3656231² = 26736050250722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3656231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3656239) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1828115 + 1828116.

It is an arithmetic number, because the mean of its divisors is an integer number (1828116).

Almost surely, 2^3656231 is an apocalyptic number.

3656231 is a deficient number, since it is larger than the sum of its proper divisors (1).

3656231 is an equidigital number, since it uses as much as digits as its factorization.

3656231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 26.

The square root of 3656231 is about 1912.1273493154. The cubic root of 3656231 is about 154.0557368384.

The spelling of 3656231 in words is "three million, six hundred fifty-six thousand, two hundred thirty-one".