3865331 has 2 divisors, whose sum is σ = 3865332. Its totient is φ = 3865330.

The previous prime is 3865321. The next prime is 3865333. The reversal of 3865331 is 1335683.

It is a strong prime.

It is an emirp because it is prime and its reverse (1335683) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3865331 - 2¹⁰ = 3864307 is a prime.

It is a super-2 number, since 2×3865331² = 29881567479122, which contains 22 as substring.

Together with 3865333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3865294 and 3865303.

It is not a weakly prime, because it can be changed into another prime (3865333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1932665 + 1932666.

It is an arithmetic number, because the mean of its divisors is an integer number (1932666).

Almost surely, 2^3865331 is an apocalyptic number.

3865331 is a deficient number, since it is larger than the sum of its proper divisors (1).

3865331 is an equidigital number, since it uses as much as digits as its factorization.

3865331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 29.

The square root of 3865331 is about 1966.0445061086. The cubic root of 3865331 is about 156.9382829080.

The spelling of 3865331 in words is "three million, eight hundred sixty-five thousand, three hundred thirty-one".