3856231 has 2 divisors, whose sum is σ = 3856232. Its totient is φ = 3856230.

The previous prime is 3856213. The next prime is 3856243. The reversal of 3856231 is 1326583.

Together with previous prime (3856213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3856231 - 2⁵ = 3856199 is a prime.

It is a super-2 number, since 2×3856231² = 29741035050722, which contains 22 as substring.

It is a Chen prime.

It is equal to p₂₇₃₇₁₈ and since 3856231 and 273718 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3856231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3856261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1928115 + 1928116.

It is an arithmetic number, because the mean of its divisors is an integer number (1928116).

Almost surely, 2^3856231 is an apocalyptic number.

3856231 is a deficient number, since it is larger than the sum of its proper divisors (1).

3856231 is an equidigital number, since it uses as much as digits as its factorization.

3856231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 3856231 is about 1963.7288509364. The cubic root of 3856231 is about 156.8150282130.

The spelling of 3856231 in words is "three million, eight hundred fifty-six thousand, two hundred thirty-one".