3855287 has 2 divisors, whose sum is σ = 3855288. Its totient is φ = 3855286.

The previous prime is 3855239. The next prime is 3855323. The reversal of 3855287 is 7825583.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3855287 - 2⁶ = 3855223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3855287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3855217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1927643 + 1927644.

It is an arithmetic number, because the mean of its divisors is an integer number (1927644).

Almost surely, 2^3855287 is an apocalyptic number.

3855287 is a deficient number, since it is larger than the sum of its proper divisors (1).

3855287 is an equidigital number, since it uses as much as digits as its factorization.

3855287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 38.

The square root of 3855287 is about 1963.4884771753. The cubic root of 3855287 is about 156.8022311350.

The spelling of 3855287 in words is "three million, eight hundred fifty-five thousand, two hundred eighty-seven".