3855667 has 2 divisors, whose sum is σ = 3855668. Its totient is φ = 3855666.

The previous prime is 3855647. The next prime is 3855703. The reversal of 3855667 is 7665583.

It is a weak prime.

It is an emirp because it is prime and its reverse (7665583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3855667 - 2⁷ = 3855539 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3855647) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1927833 + 1927834.

It is an arithmetic number, because the mean of its divisors is an integer number (1927834).

Almost surely, 2^3855667 is an apocalyptic number.

3855667 is a deficient number, since it is larger than the sum of its proper divisors (1).

3855667 is an equidigital number, since it uses as much as digits as its factorization.

3855667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 40.

The square root of 3855667 is about 1963.5852413379. The cubic root of 3855667 is about 156.8073827523.

It can be divided in two parts, 385566 and 7, that multiplied together give a palindrome (2698962).

The spelling of 3855667 in words is "three million, eight hundred fifty-five thousand, six hundred sixty-seven".