3965231 has 2 divisors, whose sum is σ = 3965232. Its totient is φ = 3965230.

The previous prime is 3965219. The next prime is 3965309. The reversal of 3965231 is 1325693.

3965231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (1325693) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3965231 - 2¹⁸ = 3703087 is a prime.

It is a super-2 number, since 2×3965231² = 31446113766722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 3965194 and 3965203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3961231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1982615 + 1982616.

It is an arithmetic number, because the mean of its divisors is an integer number (1982616).

Almost surely, 2^3965231 is an apocalyptic number.

3965231 is a deficient number, since it is larger than the sum of its proper divisors (1).

3965231 is an equidigital number, since it uses as much as digits as its factorization.

3965231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 29.

The square root of 3965231 is about 1991.2887786557. The cubic root of 3965231 is about 158.2788298706.

The spelling of 3965231 in words is "three million, nine hundred sixty-five thousand, two hundred thirty-one".